Init RaspberryIO

Unosquare.RaspberryIO/Camera/CameraColor.cs

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+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan;
+    using System;
+    using System.Linq;
+
+    /// <summary>
+    /// A simple RGB color class to represent colors in RGB and YUV colorspaces.
+    /// </summary>
+    public class CameraColor
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CameraColor"/> class.
+        /// </summary>
+        /// <param name="r">The red.</param>
+        /// <param name="g">The green.</param>
+        /// <param name="b">The blue.</param>
+        public CameraColor(int r, int g, int b)
+            : this(r, g, b, string.Empty)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CameraColor"/> class.
+        /// </summary>
+        /// <param name="r">The red.</param>
+        /// <param name="g">The green.</param>
+        /// <param name="b">The blue.</param>
+        /// <param name="name">The well-known color name.</param>
+        public CameraColor(int r, int g, int b, string name)
+        {
+            RGB = new[] { Convert.ToByte(r.Clamp(0, 255)), Convert.ToByte(g.Clamp(0, 255)), Convert.ToByte(b.Clamp(0, 255)) };
+
+            var y = (R * .299000f) + (G * .587000f) + (B * .114000f);
+            var u = (R * -.168736f) + (G * -.331264f) + (B * .500000f) + 128f;
+            var v = (R * .500000f) + (G * -.418688f) + (B * -.081312f) + 128f;
+
+            YUV = new byte[] { (byte)y.Clamp(0, 255), (byte)u.Clamp(0, 255), (byte)v.Clamp(0, 255) };
+            Name = name;
+        }
+
+        #region Static Definitions
+
+        /// <summary>
+        /// Gets the predefined white color.
+        /// </summary>
+        public static CameraColor White => new CameraColor(255, 255, 255, nameof(White));
+
+        /// <summary>
+        /// Gets the predefined red color.
+        /// </summary>
+        public static CameraColor Red => new CameraColor(255, 0, 0, nameof(Red));
+
+        /// <summary>
+        /// Gets the predefined green color.
+        /// </summary>
+        public static CameraColor Green => new CameraColor(0, 255, 0, nameof(Green));
+
+        /// <summary>
+        /// Gets the predefined blue color.
+        /// </summary>
+        public static CameraColor Blue => new CameraColor(0, 0, 255, nameof(Blue));
+
+        /// <summary>
+        /// Gets the predefined black color.
+        /// </summary>
+        public static CameraColor Black => new CameraColor(0, 0, 0, nameof(Black));
+
+        #endregion
+
+        /// <summary>
+        /// Gets the well-known color name.
+        /// </summary>
+        public string Name { get; }
+
+        /// <summary>
+        /// Gets the red byte.
+        /// </summary>
+        public byte R => RGB[0];
+
+        /// <summary>
+        /// Gets the green byte.
+        /// </summary>
+        public byte G => RGB[1];
+
+        /// <summary>
+        /// Gets the blue byte.
+        /// </summary>
+        public byte B => RGB[2];
+
+        /// <summary>
+        /// Gets the RGB byte array (3 bytes).
+        /// </summary>
+        public byte[] RGB { get; }
+
+        /// <summary>
+        /// Gets the YUV byte array (3 bytes).
+        /// </summary>
+        public byte[] YUV { get; }
+
+        /// <summary>
+        /// Returns a hexadecimal representation of the RGB byte array.
+        /// Preceded by 0x and all in lowercase
+        /// </summary>
+        /// <param name="reverse">if set to <c>true</c> [reverse].</param>
+        /// <returns>A string</returns>
+        public string ToRgbHex(bool reverse)
+        {
+            var data = RGB.ToArray();
+            if (reverse) Array.Reverse(data);
+            return ToHex(data);
+        }
+
+        /// <summary>
+        /// Returns a hexadecimal representation of the YUV byte array.
+        /// Preceded by 0x and all in lowercase
+        /// </summary>
+        /// <param name="reverse">if set to <c>true</c> [reverse].</param>
+        /// <returns>A string</returns>
+        public string ToYuvHex(bool reverse)
+        {
+            var data = YUV.ToArray();
+            if (reverse) Array.Reverse(data);
+            return ToHex(data);
+        }
+
+        /// <summary>
+        /// Returns a hexadecimal representation of the data byte array
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <returns>A string</returns>
+        private static string ToHex(byte[] data) => $"0x{BitConverter.ToString(data).Replace("-", string.Empty).ToLowerInvariant()}";
+    }
+}

Unosquare.RaspberryIO/Camera/CameraController.cs

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+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan.Abstractions;
+    using System;
+    using Swan.Components;
+    using System.IO;
+    using System.Threading;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// The Raspberry Pi's camera controller wrapping raspistill and raspivid programs.
+    /// This class is a singleton
+    /// </summary>
+    public class CameraController : SingletonBase<CameraController>
+    {
+        #region Private Declarations
+
+        private static readonly ManualResetEventSlim OperationDone = new ManualResetEventSlim(true);
+        private static readonly object SyncRoot = new object();
+        private static CancellationTokenSource _videoTokenSource = new CancellationTokenSource();
+        private static Task<Task> _videoStreamTask;
+
+        #endregion
+
+        #region Properties
+
+        /// <summary>
+        /// Gets a value indicating whether the camera module is busy.
+        /// </summary>
+        /// <value>
+        ///   <c>true</c> if this instance is busy; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsBusy => OperationDone.IsSet == false;
+
+        #endregion
+
+        #region Image Capture Methods
+
+        /// <summary>
+        /// Captures an image asynchronously.
+        /// </summary>
+        /// <param name="settings">The settings.</param>
+        /// <param name="ct">The ct.</param>
+        /// <returns>The image bytes</returns>
+        /// <exception cref="InvalidOperationException">Cannot use camera module because it is currently busy.</exception>
+        public async Task<byte[]> CaptureImageAsync(CameraStillSettings settings, CancellationToken ct = default)
+        {
+            if (Instance.IsBusy)
+                throw new InvalidOperationException("Cannot use camera module because it is currently busy.");
+
+            if (settings.CaptureTimeoutMilliseconds <= 0)
+                throw new ArgumentException($"{nameof(settings.CaptureTimeoutMilliseconds)} needs to be greater than 0");
+
+            try
+            {
+                OperationDone.Reset();
+
+                var output = new MemoryStream();
+                var exitCode = await ProcessRunner.RunProcessAsync(
+                    settings.CommandName,
+                    settings.CreateProcessArguments(),
+                    (data, proc) =>
+                    {
+                        output.Write(data, 0, data.Length);
+                    },
+                    null,
+                    true,
+                    ct);
+
+                return exitCode != 0 ? new byte[] { } : output.ToArray();
+            }
+            finally
+            {
+                OperationDone.Set();
+            }
+        }
+
+        /// <summary>
+        /// Captures an image.
+        /// </summary>
+        /// <param name="settings">The settings.</param>
+        /// <returns>The image bytes</returns>
+        public byte[] CaptureImage(CameraStillSettings settings)
+        {
+            return CaptureImageAsync(settings).GetAwaiter().GetResult();
+        }
+
+        /// <summary>
+        /// Captures a JPEG encoded image asynchronously at 90% quality.
+        /// </summary>
+        /// <param name="width">The width.</param>
+        /// <param name="height">The height.</param>
+        /// <param name="ct">The ct.</param>
+        /// <returns>The image bytes</returns>
+        public Task<byte[]> CaptureImageJpegAsync(int width, int height, CancellationToken ct = default)
+        {
+            var settings = new CameraStillSettings
+            {
+                CaptureWidth = width,
+                CaptureHeight = height,
+                CaptureJpegQuality = 90,
+                CaptureTimeoutMilliseconds = 300,
+            };
+
+            return CaptureImageAsync(settings, ct);
+        }
+
+        /// <summary>
+        /// Captures a JPEG encoded image at 90% quality.
+        /// </summary>
+        /// <param name="width">The width.</param>
+        /// <param name="height">The height.</param>
+        /// <returns>The image bytes</returns>
+        public byte[] CaptureImageJpeg(int width, int height) => CaptureImageJpegAsync(width, height).GetAwaiter().GetResult();
+
+        #endregion
+
+        #region Video Capture Methods
+
+        /// <summary>
+        /// Opens the video stream with a timeout of 0 (running indefinitely) at 1080p resolution, variable bitrate and 25 FPS.
+        /// No preview is shown
+        /// </summary>
+        /// <param name="onDataCallback">The on data callback.</param>
+        /// <param name="onExitCallback">The on exit callback.</param>
+        public void OpenVideoStream(Action<byte[]> onDataCallback, Action onExitCallback = null)
+        {
+            var settings = new CameraVideoSettings
+            {
+                CaptureTimeoutMilliseconds = 0,
+                CaptureDisplayPreview = false,
+                CaptureWidth = 1920,
+                CaptureHeight = 1080
+            };
+
+            OpenVideoStream(settings, onDataCallback, onExitCallback);
+        }
+
+        /// <summary>
+        /// Opens the video stream with the supplied settings. Capture Timeout Milliseconds has to be 0 or greater
+        /// </summary>
+        /// <param name="settings">The settings.</param>
+        /// <param name="onDataCallback">The on data callback.</param>
+        /// <param name="onExitCallback">The on exit callback.</param>
+        /// <exception cref="InvalidOperationException">Cannot use camera module because it is currently busy.</exception>
+        /// <exception cref="ArgumentException">CaptureTimeoutMilliseconds</exception>
+        public void OpenVideoStream(CameraVideoSettings settings, Action<byte[]> onDataCallback, Action onExitCallback)
+        {
+            if (Instance.IsBusy)
+                throw new InvalidOperationException("Cannot use camera module because it is currently busy.");
+
+            if (settings.CaptureTimeoutMilliseconds < 0)
+                throw new ArgumentException($"{nameof(settings.CaptureTimeoutMilliseconds)} needs to be greater than or equal to 0");
+
+            try
+            {
+                OperationDone.Reset();
+                _videoStreamTask = Task.Factory.StartNew(() => VideoWorkerDoWork(settings, onDataCallback, onExitCallback), _videoTokenSource.Token);
+            }
+            catch
+            {
+                OperationDone.Set();
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// Closes the video stream of a video stream is open.
+        /// </summary>
+        public void CloseVideoStream()
+        {
+            lock (SyncRoot)
+            {
+                if (IsBusy == false)
+                    return;
+            }
+
+            if (_videoTokenSource.IsCancellationRequested == false)
+            {
+                _videoTokenSource.Cancel();
+                _videoStreamTask.Wait();
+            }
+
+            _videoTokenSource = new CancellationTokenSource();
+        }
+
+        private static async Task VideoWorkerDoWork(
+            CameraVideoSettings settings,
+            Action<byte[]> onDataCallback,
+            Action onExitCallback)
+        {
+            try
+            {
+                await ProcessRunner.RunProcessAsync(
+                    settings.CommandName,
+                    settings.CreateProcessArguments(),
+                    (data, proc) => onDataCallback?.Invoke(data),
+                    null,
+                    true,
+                    _videoTokenSource.Token);
+
+                onExitCallback?.Invoke();
+            }
+            catch
+            {
+                // swallow
+            }
+            finally
+            {
+                Instance.CloseVideoStream();
+                OperationDone.Set();
+            }
+        }
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Camera/CameraRect.cs

@@ -0,0 +1,82 @@
+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan;
+    using System.Globalization;
+
+    /// <summary>
+    /// Defines the Raspberry Pi camera's sensor ROI (Region of Interest)
+    /// </summary>
+    public struct CameraRect
+    {
+        /// <summary>
+        /// The default ROI which is the entire area.
+        /// </summary>
+        public static readonly CameraRect Default = new CameraRect { X = 0M, Y = 0M, W = 1.0M, H = 1.0M };
+
+        /// <summary>
+        /// Gets or sets the x in relative coordinates. (0.0 to 1.0)
+        /// </summary>
+        /// <value>
+        /// The x.
+        /// </value>
+        public decimal X { get; set; }
+
+        /// <summary>
+        /// Gets or sets the y location in relative coordinates.  (0.0 to 1.0)
+        /// </summary>
+        /// <value>
+        /// The y.
+        /// </value>
+        public decimal Y { get; set; }
+
+        /// <summary>
+        /// Gets or sets the width in relative coordinates.  (0.0 to 1.0)
+        /// </summary>
+        /// <value>
+        /// The w.
+        /// </value>
+        public decimal W { get; set; }
+
+        /// <summary>
+        /// Gets or sets the height in relative coordinates.  (0.0 to 1.0)
+        /// </summary>
+        /// <value>
+        /// The h.
+        /// </value>
+        public decimal H { get; set; }
+
+        /// <summary>
+        /// Gets a value indicating whether this instance is equal to the default (The entire area).
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if this instance is default; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsDefault
+        {
+            get
+            {
+                Clamp();
+                return X == Default.X && Y == Default.Y && W == Default.W && H == Default.H;
+            }
+        }
+
+        /// <summary>
+        /// Clamps the members of this ROI to their minimum and maximum values
+        /// </summary>
+        public void Clamp()
+        {
+            X = X.Clamp(0M, 1M);
+            Y = Y.Clamp(0M, 1M);
+            W = W.Clamp(0M, 1M - X);
+            H = H.Clamp(0M, 1M - Y);
+        }
+
+        /// <summary>
+        /// Returns a <see cref="string" /> that represents this instance.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="string" /> that represents this instance.
+        /// </returns>
+        public override string ToString() => $"{X.ToString(CultureInfo.InvariantCulture)},{Y.ToString(CultureInfo.InvariantCulture)},{W.ToString(CultureInfo.InvariantCulture)},{H.ToString(CultureInfo.InvariantCulture)}";
+    }
+}

Unosquare.RaspberryIO/Camera/CameraSettingsBase.cs

@@ -0,0 +1,340 @@
+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan;
+    using System.Globalization;
+    using System.Text;
+
+    /// <summary>
+    /// A base class to implement raspistill and raspivid wrappers
+    /// Full documentation available at
+    /// https://www.raspberrypi.org/documentation/raspbian/applications/camera.md
+    /// </summary>
+    public abstract class CameraSettingsBase
+    {
+        /// <summary>
+        /// The Invariant Culture shorthand
+        /// </summary>
+        protected static readonly CultureInfo Ci = CultureInfo.InvariantCulture;
+
+        #region Capture Settings
+
+        /// <summary>
+        /// Gets or sets the timeout milliseconds.
+        /// Default value is 5000
+        /// Recommended value is at least 300 in order to let the light collectors open
+        /// </summary>
+        public int CaptureTimeoutMilliseconds { get; set; } = 5000;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether or not to show a preview window on the screen
+        /// </summary>
+        public bool CaptureDisplayPreview { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether a preview window is shown in full screen  mode if enabled
+        /// </summary>
+        public bool CaptureDisplayPreviewInFullScreen { get; set; } = true;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether video stabilization should be enabled.
+        /// </summary>
+        public bool CaptureVideoStabilizationEnabled { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets the display preview opacity only if the display preview property is enabled.
+        /// </summary>
+        public byte CaptureDisplayPreviewOpacity { get; set; } = 255;
+
+        /// <summary>
+        /// Gets or sets the capture sensor region of interest in relative coordinates.
+        /// </summary>
+        public CameraRect CaptureSensorRoi { get; set; } = CameraRect.Default;
+
+        /// <summary>
+        /// Gets or sets the capture shutter speed in microseconds.
+        /// Default -1, Range 0 to 6000000 (equivalent to 6 seconds)
+        /// </summary>
+        public int CaptureShutterSpeedMicroseconds { get; set; } = -1;
+
+        /// <summary>
+        /// Gets or sets the exposure mode.
+        /// </summary>
+        public CameraExposureMode CaptureExposure { get; set; } = CameraExposureMode.Auto;
+
+        /// <summary>
+        /// Gets or sets the picture EV compensation. Default is 0, Range is -10 to 10
+        /// Camera exposure compensation is commonly stated in terms of EV units;
+        /// 1 EV is equal to one exposure step (or stop), corresponding to a doubling of exposure.
+        /// Exposure can be adjusted by changing either the lens f-number or the exposure time;
+        /// which one is changed usually depends on the camera's exposure mode.
+        /// </summary>
+        public int CaptureExposureCompensation { get; set; } = 0;
+
+        /// <summary>
+        /// Gets or sets the capture metering mode.
+        /// </summary>
+        public CameraMeteringMode CaptureMeteringMode { get; set; } = CameraMeteringMode.Average;
+
+        /// <summary>
+        /// Gets or sets the automatic white balance mode. By default it is set to Auto
+        /// </summary>
+        public CameraWhiteBalanceMode CaptureWhiteBalanceControl { get; set; } = CameraWhiteBalanceMode.Auto;
+
+        /// <summary>
+        /// Gets or sets the capture white balance gain on the blue channel. Example: 1.25
+        /// Only takes effect if White balance control is set to off.
+        /// Default is 0
+        /// </summary>
+        public decimal CaptureWhiteBalanceGainBlue { get; set; } = 0M;
+
+        /// <summary>
+        /// Gets or sets the capture white balance gain on the red channel. Example: 1.75
+        /// Only takes effect if White balance control is set to off.
+        /// Default is 0
+        /// </summary>
+        public decimal CaptureWhiteBalanceGainRed { get; set; } = 0M;
+
+        /// <summary>
+        /// Gets or sets the dynamic range compensation.
+        /// DRC changes the images by increasing the range of dark areas, and decreasing the brighter areas. This can improve the image in low light areas.
+        /// </summary>
+        public CameraDynamicRangeCompensation CaptureDynamicRangeCompensation { get; set; } =
+            CameraDynamicRangeCompensation.Off;
+
+        #endregion
+
+        #region Image Properties
+
+        /// <summary>
+        /// Gets or sets the width of the picture to take.
+        /// Less than or equal to 0 in either width or height means maximum resolution available.
+        /// </summary>
+        public int CaptureWidth { get; set; } = 640;
+
+        /// <summary>
+        /// Gets or sets the height of the picture to take.
+        /// Less than or equal to 0 in either width or height means maximum resolution available.
+        /// </summary>
+        public int CaptureHeight { get; set; } = 480;
+
+        /// <summary>
+        /// Gets or sets the picture sharpness. Default is 0, Range form -100 to 100
+        /// </summary>
+        public int ImageSharpness { get; set; } = 0;
+
+        /// <summary>
+        /// Gets or sets the picture contrast. Default is 0, Range form -100 to 100
+        /// </summary>
+        public int ImageContrast { get; set; } = 0;
+
+        /// <summary>
+        /// Gets or sets the picture brightness. Default is 50, Range form 0 to 100
+        /// </summary>
+        public int ImageBrightness { get; set; } = 50; // from 0 to 100
+
+        /// <summary>
+        /// Gets or sets the picture saturation. Default is 0, Range form -100 to 100
+        /// </summary>
+        public int ImageSaturation { get; set; } = 0;
+
+        /// <summary>
+        /// Gets or sets the picture ISO. Default is -1 Range is 100 to 800
+        /// The higher the value, the more light the sensor absorbs
+        /// </summary>
+        public int ImageIso { get; set; } = -1;
+
+        /// <summary>
+        /// Gets or sets the image capture effect to be applied.
+        /// </summary>
+        public CameraImageEffect ImageEffect { get; set; } = CameraImageEffect.None;
+
+        /// <summary>
+        /// Gets or sets the color effect U coordinates.
+        /// Default is -1, Range is 0 to 255
+        /// 128:128 should be effectively a monochrome image.
+        /// </summary>
+        public int ImageColorEffectU { get; set; } = -1; // 0 to 255
+
+        /// <summary>
+        /// Gets or sets the color effect V coordinates.
+        /// Default is -1, Range is 0 to 255
+        /// 128:128 should be effectively a monochrome image.
+        /// </summary>
+        public int ImageColorEffectV { get; set; } = -1; // 0 to 255
+
+        /// <summary>
+        /// Gets or sets the image rotation. Default is no rotation
+        /// </summary>
+        public CameraImageRotation ImageRotation { get; set; } = CameraImageRotation.None;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the image should be flipped horizontally.
+        /// </summary>
+        public bool ImageFlipHorizontally { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the image should be flipped vertically.
+        /// </summary>
+        public bool ImageFlipVertically { get; set; }
+
+        /// <summary>
+        /// Gets or sets the image annotations using a bitmask (or flags) notation.
+        /// Apply a bitwise OR to the enumeration to include multiple annotations
+        /// </summary>
+        public CameraAnnotation ImageAnnotations { get; set; } = CameraAnnotation.None;
+
+        /// <summary>
+        /// Gets or sets the image annotations text.
+        /// Text may include date/time placeholders by using the '%' character, as used by strftime.
+        /// Example: ABC %Y-%m-%d %X will output ABC 2015-10-28 20:09:33
+        /// </summary>
+        public string ImageAnnotationsText { get; set; } = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the font size of the text annotations
+        /// Default is -1, range is 6 to 160
+        /// </summary>
+        public int ImageAnnotationFontSize { get; set; } = -1;
+
+        /// <summary>
+        /// Gets or sets the color of the text annotations.
+        /// </summary>
+        /// <value>
+        /// The color of the image annotation font.
+        /// </value>
+        public CameraColor ImageAnnotationFontColor { get; set; } = null;
+
+        /// <summary>
+        /// Gets or sets the background color for text annotations.
+        /// </summary>
+        /// <value>
+        /// The image annotation background.
+        /// </value>
+        public CameraColor ImageAnnotationBackground { get; set; } = null;
+
+        #endregion
+
+        #region Interface
+
+        /// <summary>
+        /// Gets the command file executable.
+        /// </summary>
+        public abstract string CommandName { get; }
+
+        /// <summary>
+        /// Creates the process arguments.
+        /// </summary>
+        /// <returns>The string that represents the process arguments</returns>
+        public virtual string CreateProcessArguments()
+        {
+            var sb = new StringBuilder();
+            sb.Append("-o -"); // output to standard output as opposed to a file.
+            sb.Append($" -t {(CaptureTimeoutMilliseconds < 0 ? "0" : CaptureTimeoutMilliseconds.ToString(Ci))}");
+
+            // Basic Width and height
+            if (CaptureWidth > 0 && CaptureHeight > 0)
+            {
+                sb.Append($" -w {CaptureWidth.ToString(Ci)}");
+                sb.Append($" -h {CaptureHeight.ToString(Ci)}");
+            }
+
+            // Display Preview
+            if (CaptureDisplayPreview)
+            {
+                if (CaptureDisplayPreviewInFullScreen) 
+                    sb.Append(" -f");
+
+                if (CaptureDisplayPreviewOpacity != byte.MaxValue)
+                    sb.Append($" -op {CaptureDisplayPreviewOpacity.ToString(Ci)}");
+            }
+            else
+            {
+                sb.Append(" -n"); // no preview
+            }
+
+            // Picture Settings
+            if (ImageSharpness != 0)
+                sb.Append($" -sh {ImageSharpness.Clamp(-100, 100).ToString(Ci)}");
+
+            if (ImageContrast != 0)
+                sb.Append($" -co {ImageContrast.Clamp(-100, 100).ToString(Ci)}");
+
+            if (ImageBrightness != 50)
+                sb.Append($" -br {ImageBrightness.Clamp(0, 100).ToString(Ci)}");
+
+            if (ImageSaturation != 0)
+                sb.Append($" -sa {ImageSaturation.Clamp(-100, 100).ToString(Ci)}");
+
+            if (ImageIso >= 100)
+                sb.Append($" -ISO {ImageIso.Clamp(100, 800).ToString(Ci)}");
+
+            if (CaptureVideoStabilizationEnabled)
+                sb.Append(" -vs");
+
+            if (CaptureExposureCompensation != 0)
+                sb.Append($" -ev {CaptureExposureCompensation.Clamp(-10, 10).ToString(Ci)}");
+
+            if (CaptureExposure != CameraExposureMode.Auto)
+                sb.Append($" -ex {CaptureExposure.ToString().ToLowerInvariant()}");
+
+            if (CaptureWhiteBalanceControl != CameraWhiteBalanceMode.Auto)
+                sb.Append($" -awb {CaptureWhiteBalanceControl.ToString().ToLowerInvariant()}");
+
+            if (ImageEffect != CameraImageEffect.None)
+                sb.Append($" -ifx {ImageEffect.ToString().ToLowerInvariant()}");
+
+            if (ImageColorEffectU >= 0 && ImageColorEffectV >= 0)
+            {
+                sb.Append(
+                    $" -cfx {ImageColorEffectU.Clamp(0, 255).ToString(Ci)}:{ImageColorEffectV.Clamp(0, 255).ToString(Ci)}");
+            }
+
+            if (CaptureMeteringMode != CameraMeteringMode.Average)
+                sb.Append($" -mm {CaptureMeteringMode.ToString().ToLowerInvariant()}");
+
+            if (ImageRotation != CameraImageRotation.None)
+                sb.Append($" -rot {((int)ImageRotation).ToString(Ci)}");
+
+            if (ImageFlipHorizontally)
+                sb.Append(" -hf");
+
+            if (ImageFlipVertically)
+                sb.Append(" -vf");
+
+            if (CaptureSensorRoi.IsDefault == false)
+                sb.Append($" -roi {CaptureSensorRoi}");
+
+            if (CaptureShutterSpeedMicroseconds > 0)
+                sb.Append($" -ss {CaptureShutterSpeedMicroseconds.Clamp(0, 6000000).ToString(Ci)}");
+
+            if (CaptureDynamicRangeCompensation != CameraDynamicRangeCompensation.Off)
+                sb.Append($" -drc {CaptureDynamicRangeCompensation.ToString().ToLowerInvariant()}");
+
+            if (CaptureWhiteBalanceControl == CameraWhiteBalanceMode.Off &&
+                (CaptureWhiteBalanceGainBlue != 0M || CaptureWhiteBalanceGainRed != 0M))
+                sb.Append($" -awbg {CaptureWhiteBalanceGainBlue.ToString(Ci)},{CaptureWhiteBalanceGainRed.ToString(Ci)}");
+
+            if (ImageAnnotationFontSize > 0)
+            {
+                sb.Append($" -ae {ImageAnnotationFontSize.Clamp(6, 160).ToString(Ci)}");
+                sb.Append($",{(ImageAnnotationFontColor == null ? "0xff" : ImageAnnotationFontColor.ToYuvHex(true))}");
+
+                if (ImageAnnotationBackground != null)
+                {
+                    ImageAnnotations |= CameraAnnotation.SolidBackground;
+                    sb.Append($",{ImageAnnotationBackground.ToYuvHex(true)}");
+                }
+            }
+
+            if (ImageAnnotations != CameraAnnotation.None)
+                sb.Append($" -a {((int)ImageAnnotations).ToString(Ci)}");
+
+            if (string.IsNullOrWhiteSpace(ImageAnnotationsText) == false)
+                sb.Append($" -a \"{ImageAnnotationsText.Replace("\"", "'")}\"");
+
+            return sb.ToString();
+        }
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Camera/CameraStillSettings.cs

@@ -0,0 +1,120 @@
+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan;
+    using System;
+    using System.Collections.Generic;
+    using System.Text;
+
+    /// <summary>
+    /// Defines a wrapper for the raspistill program and its settings (command-line arguments)
+    /// </summary>
+    /// <seealso cref="CameraSettingsBase" />
+    public class CameraStillSettings : CameraSettingsBase
+    {
+        private int _rotate;
+
+        /// <inheritdoc />
+        public override string CommandName => "raspistill";
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the preview window (if enabled) uses native capture resolution
+        /// This may slow down preview FPS
+        /// </summary>
+        public bool CaptureDisplayPreviewAtResolution { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets the encoding format the hardware will use for the output.
+        /// </summary>
+        public CameraImageEncodingFormat CaptureEncoding { get; set; } = CameraImageEncodingFormat.Jpg;
+
+        /// <summary>
+        /// Gets or sets the quality for JPEG only encoding mode.
+        /// Value ranges from 0 to 100
+        /// </summary>
+        public int CaptureJpegQuality { get; set; } = 90;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the JPEG encoder should add raw bayer metadata.
+        /// </summary>
+        public bool CaptureJpegIncludeRawBayerMetadata { get; set; } = false;
+
+        /// <summary>
+        /// JPEG EXIF data
+        /// Keys and values must be already properly escaped. Otherwise the command will fail.
+        /// </summary>
+        public Dictionary<string, string> CaptureJpegExtendedInfo { get; } = new Dictionary<string, string>();
+
+        /// <summary>
+        /// Gets or sets a value indicating whether [horizontal flip].
+        /// </summary>
+        /// <value>
+        ///   <c>true</c> if [horizontal flip]; otherwise, <c>false</c>.
+        /// </value>
+        public bool HorizontalFlip { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether [vertical flip].
+        /// </summary>
+        /// <value>
+        ///   <c>true</c> if [vertical flip]; otherwise, <c>false</c>.
+        /// </value>
+        public bool VerticalFlip { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets the rotation.
+        /// </summary>
+        /// <exception cref="ArgumentOutOfRangeException">Valid range 0-359</exception>
+        public int Rotation
+        {
+            get => _rotate;
+            set
+            {
+                if (value < 0 || value > 359)
+                {
+                    throw new ArgumentOutOfRangeException(nameof(value), "Valid range 0-359");
+                }
+
+                _rotate = value;
+            }
+        }
+
+        /// <inheritdoc />
+        public override string CreateProcessArguments()
+        {
+            var sb = new StringBuilder(base.CreateProcessArguments());
+            sb.Append($" -e {CaptureEncoding.ToString().ToLowerInvariant()}");
+
+            // JPEG Encoder specific arguments
+            if (CaptureEncoding == CameraImageEncodingFormat.Jpg)
+            {
+                sb.Append($" -q {CaptureJpegQuality.Clamp(0, 100).ToString(Ci)}");
+
+                if (CaptureJpegIncludeRawBayerMetadata)
+                    sb.Append(" -r");
+
+                // JPEG EXIF data
+                if (CaptureJpegExtendedInfo.Count > 0)
+                {
+                    foreach (var kvp in CaptureJpegExtendedInfo)
+                    {
+                        if (string.IsNullOrWhiteSpace(kvp.Key) || string.IsNullOrWhiteSpace(kvp.Value))
+                            continue;
+
+                        sb.Append($" -x \"{kvp.Key.Replace("\"", "'")}={kvp.Value.Replace("\"", "'")}\"");
+                    }
+                }
+            }
+
+            // Display preview settings
+            if (CaptureDisplayPreview && CaptureDisplayPreviewAtResolution) sb.Append(" -fp");
+
+            if (Rotation != 0) sb.Append($" -rot {Rotation}");
+
+            if (HorizontalFlip) sb.Append(" -hf");
+
+            if (VerticalFlip) sb.Append(" -vf");
+
+            return sb.ToString();
+        }
+    }
+}

Unosquare.RaspberryIO/Camera/CameraVideoSettings.cs

@@ -0,0 +1,94 @@
+namespace Unosquare.RaspberryIO.Camera
+{
+    using Swan;
+    using System.Text;
+
+    /// <summary>
+    /// Represents the raspivid camera settings for video capture functionality
+    /// </summary>
+    /// <seealso cref="CameraSettingsBase" />
+    public class CameraVideoSettings : CameraSettingsBase
+    {
+        /// <inheritdoc />
+        public override string CommandName => "raspivid";
+
+        /// <summary>
+        /// Use bits per second, so 10Mbits/s would be -b 10000000. For H264, 1080p30 a high quality bitrate would be 15Mbits/s or more. 
+        /// Maximum bitrate is 25Mbits/s (-b 25000000), but much over 17Mbits/s won't show noticeable improvement at 1080p30.
+        /// Default -1
+        /// </summary>
+        public int CaptureBitrate { get; set; } = -1;
+
+        /// <summary>
+        /// Gets or sets the framerate.
+        /// Default 25, range 2 to 30
+        /// </summary>
+        public int CaptureFramerate { get; set; } = 25;
+
+        /// <summary>
+        /// Sets the intra refresh period (GoP) rate for the recorded video. H264 video uses a complete frame (I-frame) every intra 
+        /// refresh period, from which subsequent frames are based. This option specifies the number of frames between each I-frame. 
+        /// Larger numbers here will reduce the size of the resulting video, and smaller numbers make the stream less error-prone.
+        /// </summary>
+        public int CaptureKeyframeRate { get; set; } = 25;
+
+        /// <summary>
+        /// Sets the initial quantisation parameter for the stream. Varies from approximately 10 to 40, and will greatly affect 
+        /// the quality of the recording. Higher values reduce quality and decrease file size. Combine this setting with a 
+        /// bitrate of 0 to set a completely variable bitrate.
+        /// </summary>
+        public int CaptureQuantisation { get; set; } = 23;
+
+        /// <summary>
+        /// Gets or sets the profile.
+        /// Sets the H264 profile to be used for the encoding.
+        /// Default is Main mode
+        /// </summary>
+        public CameraH264Profile CaptureProfile { get; set; } = CameraH264Profile.Main;
+
+        /// <summary>
+        /// Forces the stream to include PPS and SPS headers on every I-frame. Needed for certain streaming cases 
+        /// e.g. Apple HLS. These headers are small, so don't greatly increase the file size.
+        /// </summary>
+        /// <value>
+        ///   <c>true</c> if [interleave headers]; otherwise, <c>false</c>.
+        /// </value>
+        public bool CaptureInterleaveHeaders { get; set; } = true;
+
+        /// <summary>
+        /// Switch on an option to display the preview after compression. This will show any compression artefacts in the preview window. In normal operation, 
+        /// the preview will show the camera output prior to being compressed. This option is not guaranteed to work in future releases.
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if [capture display preview encoded]; otherwise, <c>false</c>.
+        /// </value>
+        public bool CaptureDisplayPreviewEncoded { get; set; } = false;
+
+        /// <inheritdoc />
+        public override string CreateProcessArguments()
+        {
+            var sb = new StringBuilder(base.CreateProcessArguments());
+
+            sb.Append($" -pf {CaptureProfile.ToString().ToLowerInvariant()}");
+            if (CaptureBitrate < 0)
+                sb.Append($" -b {CaptureBitrate.Clamp(0, 25000000).ToString(Ci)}");
+
+            if (CaptureFramerate >= 2)
+                sb.Append($" -fps {CaptureFramerate.Clamp(2, 30).ToString(Ci)}");
+
+            if (CaptureDisplayPreview && CaptureDisplayPreviewEncoded)
+                    sb.Append(" -e");
+
+            if (CaptureKeyframeRate > 0)
+                sb.Append($" -g {CaptureKeyframeRate.ToString(Ci)}");
+
+            if (CaptureQuantisation >= 0)
+                sb.Append($" -qp {CaptureQuantisation.Clamp(0, 40).ToString(Ci)}");
+
+            if (CaptureInterleaveHeaders)
+                sb.Append(" -ih");
+
+            return sb.ToString();
+        }
+    }
+}

Unosquare.RaspberryIO/Camera/Enums.cs

@@ -0,0 +1,423 @@
+namespace Unosquare.RaspberryIO.Camera
+{
+    using System;
+
+    /// <summary>
+    /// Defines the available encoding formats for the Raspberry Pi camera module
+    /// </summary>
+    public enum CameraImageEncodingFormat
+    {
+        /// <summary>
+        /// The JPG
+        /// </summary>
+        Jpg,
+
+        /// <summary>
+        /// The BMP
+        /// </summary>
+        Bmp,
+
+        /// <summary>
+        /// The GIF
+        /// </summary>
+        Gif,
+
+        /// <summary>
+        /// The PNG
+        /// </summary>
+        Png,
+    }
+
+    /// <summary>
+    /// Defines the different exposure modes for the Raspberry Pi's camera module
+    /// </summary>
+    public enum CameraExposureMode
+    {
+        /// <summary>
+        /// The automatic
+        /// </summary>
+        Auto,
+
+        /// <summary>
+        /// The night
+        /// </summary>
+        Night,
+
+        /// <summary>
+        /// The night preview
+        /// </summary>
+        NightPreview,
+
+        /// <summary>
+        /// The backlight
+        /// </summary>
+        Backlight,
+
+        /// <summary>
+        /// The spotlight
+        /// </summary>
+        Spotlight,
+
+        /// <summary>
+        /// The sports
+        /// </summary>
+        Sports,
+
+        /// <summary>
+        /// The snow
+        /// </summary>
+        Snow,
+
+        /// <summary>
+        /// The beach
+        /// </summary>
+        Beach,
+
+        /// <summary>
+        /// The very long
+        /// </summary>
+        VeryLong,
+
+        /// <summary>
+        /// The fixed FPS
+        /// </summary>
+        FixedFps,
+
+        /// <summary>
+        /// The anti shake
+        /// </summary>
+        AntiShake,
+
+        /// <summary>
+        /// The fireworks
+        /// </summary>
+        Fireworks
+    }
+
+    /// <summary>
+    /// Defines the different AWB (Auto White Balance) modes for the Raspberry Pi's camera module
+    /// </summary>
+    public enum CameraWhiteBalanceMode
+    {
+        /// <summary>
+        /// No white balance
+        /// </summary>
+        Off,
+
+        /// <summary>
+        /// The automatic
+        /// </summary>
+        Auto,
+
+        /// <summary>
+        /// The sun
+        /// </summary>
+        Sun,
+
+        /// <summary>
+        /// The cloud
+        /// </summary>
+        Cloud,
+
+        /// <summary>
+        /// The shade
+        /// </summary>
+        Shade,
+
+        /// <summary>
+        /// The tungsten
+        /// </summary>
+        Tungsten,
+
+        /// <summary>
+        /// The fluorescent
+        /// </summary>
+        Fluorescent,
+
+        /// <summary>
+        /// The incandescent
+        /// </summary>
+        Incandescent,
+
+        /// <summary>
+        /// The flash
+        /// </summary>
+        Flash,
+
+        /// <summary>
+        /// The horizon
+        /// </summary>
+        Horizon
+    }
+
+    /// <summary>
+    /// Defines the available image effects for the Raspberry Pi's camera module
+    /// </summary>
+    public enum CameraImageEffect
+    {
+        /// <summary>
+        /// No effect
+        /// </summary>
+        None,
+
+        /// <summary>
+        /// The negative
+        /// </summary>
+        Negative,
+
+        /// <summary>
+        /// The solarise
+        /// </summary>
+        Solarise,
+
+        /// <summary>
+        /// The whiteboard
+        /// </summary>
+        Whiteboard,
+
+        /// <summary>
+        /// The blackboard
+        /// </summary>
+        Blackboard,
+
+        /// <summary>
+        /// The sketch
+        /// </summary>
+        Sketch,
+
+        /// <summary>
+        /// The denoise
+        /// </summary>
+        Denoise,
+
+        /// <summary>
+        /// The emboss
+        /// </summary>
+        Emboss,
+
+        /// <summary>
+        /// The oil paint
+        /// </summary>
+        OilPaint,
+
+        /// <summary>
+        /// The hatch
+        /// </summary>
+        Hatch,
+
+        /// <summary>
+        /// Graphite Pen
+        /// </summary>
+        GPen,
+
+        /// <summary>
+        /// The pastel
+        /// </summary>
+        Pastel,
+
+        /// <summary>
+        /// The water colour
+        /// </summary>
+        WaterColour,
+
+        /// <summary>
+        /// The film
+        /// </summary>
+        Film,
+
+        /// <summary>
+        /// The blur
+        /// </summary>
+        Blur,
+
+        /// <summary>
+        /// The saturation
+        /// </summary>
+        Saturation,
+
+        /// <summary>
+        /// The solour swap
+        /// </summary>
+        SolourSwap,
+
+        /// <summary>
+        /// The washed out
+        /// </summary>
+        WashedOut,
+
+        /// <summary>
+        /// The colour point
+        /// </summary>
+        ColourPoint,
+
+        /// <summary>
+        /// The colour balance
+        /// </summary>
+        ColourBalance,
+
+        /// <summary>
+        /// The cartoon
+        /// </summary>
+        Cartoon
+    }
+
+    /// <summary>
+    /// Defines the different metering modes for the Raspberry Pi's camera module
+    /// </summary>
+    public enum CameraMeteringMode
+    {
+        /// <summary>
+        /// The average
+        /// </summary>
+        Average,
+
+        /// <summary>
+        /// The spot
+        /// </summary>
+        Spot,
+
+        /// <summary>
+        /// The backlit
+        /// </summary>
+        Backlit,
+
+        /// <summary>
+        /// The matrix
+        /// </summary>
+        Matrix,
+    }
+
+    /// <summary>
+    /// Defines the different image rotation modes for the Raspberry Pi's camera module
+    /// </summary>
+    public enum CameraImageRotation
+    {
+        /// <summary>
+        /// No rerotation
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// 90 Degrees
+        /// </summary>
+        Degrees90 = 90,
+
+        /// <summary>
+        /// 180 Degrees
+        /// </summary>
+        Degrees180 = 180,
+
+        /// <summary>
+        /// 270 degrees
+        /// </summary>
+        Degrees270 = 270
+    }
+
+    /// <summary>
+    /// Defines the different DRC (Dynamic Range Compensation)  modes for the Raspberry Pi's camera module
+    /// Helpful for low light photos
+    /// </summary>
+    public enum CameraDynamicRangeCompensation
+    {
+        /// <summary>
+        /// The off setting
+        /// </summary>
+        Off,
+
+        /// <summary>
+        /// The low
+        /// </summary>
+        Low,
+
+        /// <summary>
+        /// The medium
+        /// </summary>
+        Medium,
+
+        /// <summary>
+        /// The high
+        /// </summary>
+        High
+    }
+
+    /// <summary>
+    /// Defines the bit-wise mask flags for the available annotation elements for the Raspberry Pi's camera module
+    /// </summary>
+    [Flags]
+    public enum CameraAnnotation
+    {
+        /// <summary>
+        /// The none
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// The time
+        /// </summary>
+        Time = 4,
+
+        /// <summary>
+        /// The date
+        /// </summary>
+        Date = 8,
+
+        /// <summary>
+        /// The shutter settings
+        /// </summary>
+        ShutterSettings = 16,
+
+        /// <summary>
+        /// The caf settings
+        /// </summary>
+        CafSettings = 32,
+
+        /// <summary>
+        /// The gain settings
+        /// </summary>
+        GainSettings = 64,
+
+        /// <summary>
+        /// The lens settings
+        /// </summary>
+        LensSettings = 128,
+
+        /// <summary>
+        /// The motion settings
+        /// </summary>
+        MotionSettings = 256,
+
+        /// <summary>
+        /// The frame number
+        /// </summary>
+        FrameNumber = 512,
+
+        /// <summary>
+        /// The solid background
+        /// </summary>
+        SolidBackground = 1024,
+    }
+
+    /// <summary>
+    /// Defines the different H.264 encoding profiles to be used when capturing video.
+    /// </summary>
+    public enum CameraH264Profile
+    {
+        /// <summary>
+        /// BP:  Primarily for lower-cost applications with limited computing resources, 
+        /// this profile is used widely in videoconferencing and mobile applications.
+        /// </summary>
+        Baseline,
+
+        /// <summary>
+        /// MP: Originally intended as the mainstream consumer profile for broadcast 
+        /// and storage applications, the importance of this profile faded when the High profile was developed for those applications.
+        /// </summary>
+        Main,
+
+        /// <summary>
+        /// HiP: The primary profile for broadcast and disc storage applications, particularly 
+        /// for high-definition television applications (this is the profile adopted into HD DVD and Blu-ray Disc, for example).
+        /// </summary>
+        High
+    }
+}

Unosquare.RaspberryIO/Computer/DsiDisplay.cs

@@ -0,0 +1,80 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    using Swan.Abstractions;
+    using System.Globalization;
+    using System.IO;
+
+    /// <summary>
+    /// The Official Raspberry Pi 7-inch touch display from the foundation
+    /// Some docs available here:
+    /// http://forums.pimoroni.com/t/official-7-raspberry-pi-touch-screen-faq/959
+    /// </summary>
+    public class DsiDisplay : SingletonBase<DsiDisplay>
+    {
+        private const string BacklightFilename = "/sys/class/backlight/rpi_backlight/bl_power";
+        private const string BrightnessFilename = "/sys/class/backlight/rpi_backlight/brightness";
+
+        /// <summary>
+        /// Prevents a default instance of the <see cref="DsiDisplay"/> class from being created.
+        /// </summary>
+        private DsiDisplay()
+        {
+            // placeholder
+        }
+
+        /// <summary>
+        /// Gets a value indicating whether the Pi Foundation Display files are present.
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if this instance is present; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsPresent => File.Exists(BrightnessFilename);
+
+        /// <summary>
+        /// Gets or sets the brightness of the DSI display via filesystem.
+        /// </summary>
+        /// <value>
+        /// The brightness.
+        /// </value>
+        public byte Brightness
+        {
+            get
+            {
+                if (IsPresent == false) return 0;
+
+                return byte.TryParse(File.ReadAllText(BrightnessFilename).Trim(), out var brightness) ? brightness : (byte)0;
+            }
+            set
+            {
+                if (IsPresent == false) return;
+                File.WriteAllText(BrightnessFilename, value.ToString(CultureInfo.InvariantCulture));
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the backlight of the DSI display on.
+        /// This operation is performed via the file system
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if this instance is backlight on; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsBacklightOn
+        {
+            get
+            {
+                if (IsPresent == false) return false;
+
+                if (int.TryParse(File.ReadAllText(BacklightFilename).Trim(), out var backlight))
+                    return backlight == 0;
+
+                return false;
+            }
+            set
+            {
+                if (IsPresent == false) return;
+
+                File.WriteAllText(BacklightFilename, value ? "0" : "1");
+            }
+        }
+    }
+}

Unosquare.RaspberryIO/Computer/NetworkAdapterInfo.cs

@@ -0,0 +1,40 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    using System.Net;
+
+    /// <summary>
+    /// Represents a Network Adapter
+    /// </summary>
+    public class NetworkAdapterInfo
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        public string Name { get; internal set; }
+
+        /// <summary>
+        /// Gets the IP V4 address.
+        /// </summary>
+        public IPAddress IPv4 { get; internal set; }
+
+        /// <summary>
+        /// Gets the IP V6 address.
+        /// </summary>
+        public IPAddress IPv6 { get; internal set; }
+
+        /// <summary>
+        /// Gets the name of the access point.
+        /// </summary>
+        public string AccessPointName { get; internal set; }
+
+        /// <summary>
+        /// Gets the MAC (Physical) address.
+        /// </summary>
+        public string MacAddress { get; internal set; }
+
+        /// <summary>
+        /// Gets a value indicating whether this instance is wireless.
+        /// </summary>
+        public bool IsWireless { get; internal set; }
+    }
+}

Unosquare.RaspberryIO/Computer/NetworkSettings.cs

@@ -0,0 +1,266 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    using Swan;
+    using Swan.Abstractions;
+    using Swan.Components;
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Linq;
+    using System.Net;
+    using System.Text;
+
+    /// <summary>
+    /// Represents the network information
+    /// </summary>
+    public class NetworkSettings : SingletonBase<NetworkSettings>
+    {
+        private const string EssidTag = "ESSID:";
+
+        /// <summary>
+        /// Gets the local machine Host Name.
+        /// </summary>
+        public string HostName => Network.HostName;
+
+        /// <summary>
+        /// Retrieves the wireless networks.
+        /// </summary>
+        /// <param name="adapter">The adapter.</param>
+        /// <returns>A list of WiFi networks</returns>
+        public List<WirelessNetworkInfo> RetrieveWirelessNetworks(string adapter) => RetrieveWirelessNetworks(new[] { adapter });
+
+        /// <summary>
+        /// Retrieves the wireless networks.
+        /// </summary>
+        /// <param name="adapters">The adapters.</param>
+        /// <returns>A list of WiFi networks</returns>
+        public List<WirelessNetworkInfo> RetrieveWirelessNetworks(string[] adapters = null)
+        {
+            var result = new List<WirelessNetworkInfo>();
+
+            foreach (var networkAdapter in adapters ?? RetrieveAdapters().Where(x => x.IsWireless).Select(x => x.Name))
+            {
+                var wirelessOutput = ProcessRunner.GetProcessOutputAsync("iwlist", $"{networkAdapter} scanning").Result;
+                var outputLines =
+                    wirelessOutput.Split('\n')
+                        .Select(x => x.Trim())
+                        .Where(x => string.IsNullOrWhiteSpace(x) == false)
+                        .ToArray();
+
+                for (var i = 0; i < outputLines.Length; i++)
+                {
+                    var line = outputLines[i];
+
+                    if (line.StartsWith(EssidTag) == false) continue;
+
+                    var network = new WirelessNetworkInfo()
+                    {
+                        Name = line.Replace(EssidTag, string.Empty).Replace("\"", string.Empty)
+                    };
+
+                    while (true)
+                    {
+                        if (i + 1 >= outputLines.Length) break;
+
+                        // should look for two lines before the ESSID acording to the scan
+                        line = outputLines[i - 2];
+
+                        if (line.StartsWith("Quality="))
+                        {
+                            network.Quality = line.Replace("Quality=", string.Empty);
+                            break;
+                        }
+                    }
+
+                    while (true)
+                    {
+                        if (i + 1 >= outputLines.Length) break;
+
+                        // should look for a line before the ESSID  acording to the scan
+                        line = outputLines[i - 1];
+
+                        if (line.StartsWith("Encryption key:"))
+                        {
+                            network.IsEncrypted = line.Replace("Encryption key:", string.Empty).Trim() == "on";
+                            break;
+                        }
+                    }
+
+                    if (result.Any(x => x.Name == network.Name) == false)
+                        result.Add(network);
+                }
+            }
+
+            return result.OrderBy(x => x.Name).ToList();
+        }
+
+        /// <summary>
+        /// Setups the wireless network.
+        /// </summary>
+        /// <param name="adapterName">Name of the adapter.</param>
+        /// <param name="networkSsid">The network ssid.</param>
+        /// <param name="password">The password.</param>
+        /// <param name="countryCode">The 2-letter country code in uppercase. Default is US.</param>
+        /// <returns>True if successful. Otherwise, false.</returns>
+        public bool SetupWirelessNetwork(string adapterName, string networkSsid, string password = null, string countryCode = "US")
+        {
+            // TODO: Get the country where the device is located to set 'country' param in payload var
+            var payload = $"country={countryCode}\nctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev\nupdate_config=1\n";
+            payload += string.IsNullOrEmpty(password)
+                ? $"network={{\n\tssid=\"{networkSsid}\"\n\t}}\n"
+                : $"network={{\n\tssid=\"{networkSsid}\"\n\tpsk=\"{password}\"\n\t}}\n";
+            try
+            {
+                File.WriteAllText("/etc/wpa_supplicant/wpa_supplicant.conf", payload);
+                ProcessRunner.GetProcessOutputAsync("pkill", "-f wpa_supplicant").Wait();
+                ProcessRunner.GetProcessOutputAsync("ifdown", adapterName).Wait();
+                ProcessRunner.GetProcessOutputAsync("ifup", adapterName).Wait();
+            }
+            catch (Exception ex)
+            {
+                ex.Log(nameof(NetworkSettings));
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Retrieves the network adapters.
+        /// </summary>
+        /// <returns>A list of network adapters.</returns>
+        public List<NetworkAdapterInfo> RetrieveAdapters()
+        {
+            const string hWaddr = "HWaddr ";
+            const string ether = "ether ";
+
+            var result = new List<NetworkAdapterInfo>();
+            var interfacesOutput = ProcessRunner.GetProcessOutputAsync("ifconfig").Result;
+            var wlanOutput = ProcessRunner.GetProcessOutputAsync("iwconfig")
+                    .Result.Split('\n')
+                    .Where(x => x.Contains("no wireless extensions.") == false)
+                    .ToArray();
+
+            var outputLines = interfacesOutput.Split('\n').Where(x => string.IsNullOrWhiteSpace(x) == false).ToArray();
+
+            for (var i = 0; i < outputLines.Length; i++)
+            {
+                // grab the current line
+                var line = outputLines[i];
+
+                // skip if the line is indented
+                if (char.IsLetterOrDigit(line[0]) == false)
+                    continue;
+
+                // Read the line as an adatper
+                var adapter = new NetworkAdapterInfo
+                {
+                    Name = line.Substring(0, line.IndexOf(' ')).TrimEnd(':')
+                };
+
+                // Parse the MAC address in old version of ifconfig; it comes in the first line
+                if (line.IndexOf(hWaddr) >= 0)
+                {
+                    var startIndexHwd = line.IndexOf(hWaddr) + hWaddr.Length;
+                    adapter.MacAddress = line.Substring(startIndexHwd, 17).Trim();
+                }
+
+                // Parse the info in lines other than the first
+                for (var j = i + 1; j < outputLines.Length; j++)
+                {
+                    // Get the contents of the indented line
+                    var indentedLine = outputLines[j];
+
+                    // We have hit the next adapter info
+                    if (char.IsLetterOrDigit(indentedLine[0]))
+                    {
+                        i = j - 1;
+                        break;
+                    }
+
+                    // Parse the MAC address in new versions of ifconfig; it no longer comes in the first line
+                    if (indentedLine.IndexOf(ether) >= 0 && string.IsNullOrWhiteSpace(adapter.MacAddress))
+                    {
+                        var startIndexHwd = indentedLine.IndexOf(ether) + ether.Length;
+                        adapter.MacAddress = indentedLine.Substring(startIndexHwd, 17).Trim();
+                    }
+
+                    // Parse the IPv4 Address
+                    {
+                        var addressText = ParseOutputTagFromLine(indentedLine, "inet addr:") ?? ParseOutputTagFromLine(indentedLine, "inet ");
+
+                        if (addressText != null)
+                        {
+                            if (IPAddress.TryParse(addressText, out var outValue))
+                                adapter.IPv4 = outValue;
+                        }
+                    }
+
+                    // Parse the IPv6 Address
+                    {
+                        var addressText = ParseOutputTagFromLine(indentedLine, "inet6 addr:") ?? ParseOutputTagFromLine(indentedLine, "inet6 ");
+
+                        if (addressText != null)
+                        {
+                            if (IPAddress.TryParse(addressText, out var outValue))
+                                adapter.IPv6 = outValue;
+                        }
+                    }
+
+                    // we have hit the end of the output in an indented line
+                    if (j >= outputLines.Length - 1)
+                        i = outputLines.Length;
+                }
+
+                // Retrieve the wireless LAN info
+                var wlanInfo = wlanOutput.FirstOrDefault(x => x.StartsWith(adapter.Name));
+
+                if (wlanInfo != null)
+                {
+                    adapter.IsWireless = true;
+                    var essidParts = wlanInfo.Split(new[] { EssidTag }, StringSplitOptions.RemoveEmptyEntries);
+                    if (essidParts.Length >= 2)
+                    {
+                        adapter.AccessPointName = essidParts[1].Replace("\"", string.Empty).Trim();
+                    }
+                }
+
+                // Add the current adapter to the result
+                result.Add(adapter);
+            }
+
+            return result.OrderBy(x => x.Name).ToList();
+        }
+
+        /// <summary>
+        /// Retrieves current wireless connected network name.
+        /// </summary>
+        /// <returns>The connected network name.</returns>
+        public string GetWirelessNetworkName() => ProcessRunner.GetProcessOutputAsync("iwgetid", "-r").Result;
+
+        /// <summary>
+        /// Parses the output tag from the given line.
+        /// </summary>
+        /// <param name="indentedLine">The indented line.</param>
+        /// <param name="tagName">Name of the tag.</param>
+        /// <returns>The value after the tag identifier</returns>
+        private static string ParseOutputTagFromLine(string indentedLine, string tagName)
+        {
+            if (indentedLine.IndexOf(tagName) < 0)
+                return null;
+
+            var startIndex = indentedLine.IndexOf(tagName) + tagName.Length;
+            var builder = new StringBuilder(1024);
+            for (var c = startIndex; c < indentedLine.Length; c++)
+            {
+                var currentChar = indentedLine[c];
+                if (!char.IsPunctuation(currentChar) && !char.IsLetterOrDigit(currentChar))
+                    break;
+                
+                builder.Append(currentChar);
+            }
+
+            return builder.ToString();
+        }
+    }
+}

Unosquare.RaspberryIO/Computer/OsInfo.cs

@@ -0,0 +1,46 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    /// <summary>
+    /// Represents the OS Information
+    /// </summary>
+    public class OsInfo
+    {
+        /// <summary>
+        /// System name
+        /// </summary>
+        public string SysName { get; set; }
+
+        /// <summary>
+        /// Node name
+        /// </summary>
+        public string NodeName { get; set; }
+
+        /// <summary>
+        /// Release level
+        /// </summary>
+        public string Release { get; set; }
+
+        /// <summary>
+        /// Version level
+        /// </summary>
+        public string Version { get; set; }
+
+        /// <summary>
+        /// Hardware level
+        /// </summary>
+        public string Machine { get; set; }
+
+        /// <summary>
+        /// Domain name
+        /// </summary>
+        public string DomainName { get; set; }
+
+        /// <summary>
+        /// Returns a <see cref="string" /> that represents this instance.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="string" /> that represents this instance.
+        /// </returns>
+        public override string ToString() => $"{SysName} {Release} {Version}";
+    }
+}

Unosquare.RaspberryIO/Computer/PiVersion.cs

@@ -0,0 +1,134 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    /// <summary>
+    /// Defines the board revision codes of the different versions of the Raspberry Pi
+    /// http://www.raspberrypi-spy.co.uk/2012/09/checking-your-raspberry-pi-board-version/
+    /// </summary>
+    public enum PiVersion
+    {
+        /// <summary>
+        /// The unknown version
+        /// </summary>
+        Unknown = 0,
+
+        /// <summary>
+        /// The model b rev1
+        /// </summary>
+        ModelBRev1 = 0x0002,
+
+        /// <summary>
+        /// The model b rev1 ec N0001
+        /// </summary>
+        ModelBRev1ECN0001 = 0x0003,
+
+        /// <summary>
+        /// The model b rev2x04
+        /// </summary>
+        ModelBRev2x04 = 0x0004,
+
+        /// <summary>
+        /// The model b rev2x05
+        /// </summary>
+        ModelBRev2x05 = 0x0005,
+
+        /// <summary>
+        /// The model b rev2x06
+        /// </summary>
+        ModelBRev2x06 = 0x0006,
+
+        /// <summary>
+        /// The model ax07
+        /// </summary>
+        ModelAx07 = 0x0007,
+
+        /// <summary>
+        /// The model ax08
+        /// </summary>
+        ModelAx08 = 0x0008,
+
+        /// <summary>
+        /// The model ax09
+        /// </summary>
+        ModelAx09 = 0x0009,
+
+        /// <summary>
+        /// The model b rev2x0d
+        /// </summary>
+        ModelBRev2x0d,
+
+        /// <summary>
+        /// The model b rev2x0e
+        /// </summary>
+        ModelBRev2x0e,
+
+        /// <summary>
+        /// The model b rev2x0f
+        /// </summary>
+        ModelBRev2x0f = 0x000f,
+
+        /// <summary>
+        /// The model b plus0x10
+        /// </summary>
+        ModelBPlus0x10 = 0x0010,
+
+        /// <summary>
+        /// The model b plus0x13
+        /// </summary>
+        ModelBPlus0x13 = 0x0013,
+
+        /// <summary>
+        /// The compute module0x11
+        /// </summary>
+        ComputeModule0x11 = 0x0011,
+
+        /// <summary>
+        /// The compute module0x14
+        /// </summary>
+        ComputeModule0x14 = 0x0014,
+
+        /// <summary>
+        /// The model a plus0x12
+        /// </summary>
+        ModelAPlus0x12 = 0x0012,
+
+        /// <summary>
+        /// The model a plus0x15
+        /// </summary>
+        ModelAPlus0x15 = 0x0015,
+
+        /// <summary>
+        /// The pi2 model B1V1 sony
+        /// </summary>
+        Pi2ModelB1v1Sony = 0xa01041,
+
+        /// <summary>
+        /// The pi2 model B1V1 embest
+        /// </summary>
+        Pi2ModelB1v1Embest = 0xa21041,
+
+        /// <summary>
+        /// The pi2 model B1V2
+        /// </summary>
+        Pi2ModelB1v2 = 0xa22042,
+
+        /// <summary>
+        /// The pi zero1v2
+        /// </summary>
+        PiZero1v2 = 0x900092,
+
+        /// <summary>
+        /// The pi zero1v3
+        /// </summary>
+        PiZero1v3 = 0x900093,
+
+        /// <summary>
+        /// The pi3 model b sony
+        /// </summary>
+        Pi3ModelBSony = 0xa02082,
+
+        /// <summary>
+        /// The pi3 model b embest
+        /// </summary>
+        Pi3ModelBEmbest = 0xa22082
+    }
+}

Unosquare.RaspberryIO/Computer/SystemInfo.cs

@@ -0,0 +1,344 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    using Native;
+    using Swan.Abstractions;
+    using System;
+    using System.Collections.Generic;
+    using System.Globalization;
+    using System.IO;
+    using System.Linq;
+    using System.Reflection;
+
+    /// <summary>
+    /// http://raspberry-pi-guide.readthedocs.io/en/latest/system.html
+    /// </summary>
+    public sealed class SystemInfo : SingletonBase<SystemInfo>
+    {
+        private const string CpuInfoFilePath = "/proc/cpuinfo";
+        private const string MemInfoFilePath = "/proc/meminfo";
+        private const string UptimeFilePath = "/proc/uptime";
+        private static readonly StringComparer StringComparer = StringComparer.InvariantCultureIgnoreCase;
+
+        private static readonly object SyncRoot = new object();
+
+        /// <summary>
+        /// Prevents a default instance of the <see cref="SystemInfo"/> class from being created.
+        /// </summary>
+        /// <exception cref="NotSupportedException">Could not initialize the GPIO controller</exception>
+        private SystemInfo()
+        {
+            #region Obtain and format a property dictionary
+
+            var properties =
+                typeof(SystemInfo).GetTypeInfo()
+                    .GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
+                    .Where(
+                        p =>
+                            p.CanWrite && p.CanRead &&
+                            (p.PropertyType == typeof(string) || p.PropertyType == typeof(string[])))
+                    .ToArray();
+            var propDictionary = new Dictionary<string, PropertyInfo>(StringComparer);
+
+            foreach (var prop in properties)
+            {
+                propDictionary[prop.Name.Replace(" ", string.Empty).ToLowerInvariant().Trim()] = prop;
+            }
+
+            #endregion
+
+            #region Extract CPU information
+
+            if (File.Exists(CpuInfoFilePath))
+            {
+                var cpuInfoLines = File.ReadAllLines(CpuInfoFilePath);
+
+                foreach (var line in cpuInfoLines)
+                {
+                    var lineParts = line.Split(new[] { ':' }, 2);
+                    if (lineParts.Length != 2)
+                        continue;
+
+                    var propertyKey = lineParts[0].Trim().Replace(" ", string.Empty);
+                    var propertyStringValue = lineParts[1].Trim();
+
+                    if (!propDictionary.ContainsKey(propertyKey)) continue;
+
+                    var property = propDictionary[propertyKey];
+                    if (property.PropertyType == typeof(string))
+                    {
+                        property.SetValue(this, propertyStringValue);
+                    }
+                    else if (property.PropertyType == typeof(string[]))
+                    {
+                        var propertyArrayAvalue = propertyStringValue.Split(' ');
+                        property.SetValue(this, propertyArrayAvalue);
+                    }
+                }
+            }
+
+            #endregion
+
+            #region Extract Memory Information
+
+            if (File.Exists(MemInfoFilePath))
+            {
+                var memInfoLines = File.ReadAllLines(MemInfoFilePath);
+                foreach (var line in memInfoLines)
+                {
+                    var lineParts = line.Split(new[] { ':' }, 2);
+                    if (lineParts.Length != 2)
+                        continue;
+
+                    if (lineParts[0].ToLowerInvariant().Trim().Equals("memtotal") == false)
+                        continue;
+
+                    var memKb = lineParts[1].ToLowerInvariant().Trim().Replace("kb", string.Empty).Trim();
+
+                    if (int.TryParse(memKb, out var parsedMem))
+                    {
+                        InstalledRam = parsedMem * 1024;
+                        break;
+                    }
+                }
+            }
+
+            #endregion
+
+            #region Board Version and Form Factor
+
+            try
+            {
+                if (string.IsNullOrWhiteSpace(Revision) == false &&
+                    int.TryParse(
+                        Revision.ToUpperInvariant(),
+                        NumberStyles.HexNumber,
+                        CultureInfo.InvariantCulture,
+                        out var boardVersion))
+                {
+                    RaspberryPiVersion = PiVersion.Unknown;
+                    if (Enum.GetValues(typeof(PiVersion)).Cast<int>().Contains(boardVersion))
+                    {
+                        RaspberryPiVersion = (PiVersion)boardVersion;
+                    }
+                }
+
+                WiringPiBoardRevision = WiringPi.PiBoardRev();
+            }
+            catch
+            {
+                /* Ignore */
+            }
+
+            #endregion
+
+            #region Version Information
+
+            {
+                var libParts = WiringPi.WiringPiLibrary.Split('.');
+                var major = int.Parse(libParts[libParts.Length - 2]);
+                var minor = int.Parse(libParts[libParts.Length - 1]);
+                var version = new Version(major, minor);
+                WiringPiVersion = version;
+            }
+
+            #endregion
+
+            #region Extract OS Info
+
+            try
+            {
+                Standard.Uname(out var unameInfo);
+                OperatingSystem = new OsInfo
+                {
+                    DomainName = unameInfo.DomainName,
+                    Machine = unameInfo.Machine,
+                    NodeName = unameInfo.NodeName,
+                    Release = unameInfo.Release,
+                    SysName = unameInfo.SysName,
+                    Version = unameInfo.Version
+                };
+            }
+            catch
+            {
+                OperatingSystem = new OsInfo();
+            }
+
+            #endregion
+        }
+
+        /// <summary>
+        /// Gets the wiring pi library version.
+        /// </summary>
+        public Version WiringPiVersion { get; }
+
+        /// <summary>
+        /// Gets the OS information.
+        /// </summary>
+        /// <value>
+        /// The os information.
+        /// </value>
+        public OsInfo OperatingSystem { get; }
+
+        /// <summary>
+        /// Gets the Raspberry Pi version.
+        /// </summary>
+        public PiVersion RaspberryPiVersion { get; }
+
+        /// <summary>
+        /// Gets the Wiring Pi board revision (1 or 2).
+        /// </summary>
+        /// <value>
+        /// The wiring pi board revision.
+        /// </value>
+        public int WiringPiBoardRevision { get; }
+
+        /// <summary>
+        /// Gets the number of processor cores.
+        /// </summary>
+        public int ProcessorCount
+        {
+            get
+            {
+                if (int.TryParse(Processor, out var outIndex))
+                {
+                    return outIndex + 1;
+                }
+
+                return 0;
+            }
+        }
+
+        /// <summary>
+        /// Gets the installed ram in bytes.
+        /// </summary>
+        public int InstalledRam { get; }
+
+        /// <summary>
+        /// Gets a value indicating whether this CPU is little endian.
+        /// </summary>
+        public bool IsLittleEndian => BitConverter.IsLittleEndian;
+
+        /// <summary>
+        /// Gets the CPU model name.
+        /// </summary>
+        public string ModelName { get; private set; }
+
+        /// <summary>
+        /// Gets a list of supported CPU features.
+        /// </summary>
+        public string[] Features { get; private set; }
+
+        /// <summary>
+        /// Gets the CPU implementer hex code.
+        /// </summary>
+        public string CpuImplementer { get; private set; }
+
+        /// <summary>
+        /// Gets the CPU architecture code.
+        /// </summary>
+        public string CpuArchitecture { get; private set; }
+
+        /// <summary>
+        /// Gets the CPU variant code.
+        /// </summary>
+        public string CpuVariant { get; private set; }
+
+        /// <summary>
+        /// Gets the CPU part code.
+        /// </summary>
+        public string CpuPart { get; private set; }
+
+        /// <summary>
+        /// Gets the CPU revision code.
+        /// </summary>
+        public string CpuRevision { get; private set; }
+
+        /// <summary>
+        /// Gets the hardware model number.
+        /// </summary>
+        public string Hardware { get; private set; }
+
+        /// <summary>
+        /// Gets the hardware revision number.
+        /// </summary>
+        public string Revision { get; private set; }
+
+        /// <summary>
+        /// Gets the serial number.
+        /// </summary>
+        public string Serial { get; private set; }
+
+        /// <summary>
+        /// Gets the system uptime (in seconds).
+        /// </summary>
+        public double Uptime
+        {
+            get
+            {
+                try
+                {
+                    if (File.Exists(UptimeFilePath) == false) return 0;
+                    var parts = File.ReadAllText(UptimeFilePath).Trim().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+                    if (parts.Length >= 1 && float.TryParse(parts[0], out var result))
+                        return result;
+                }
+                catch
+                {
+                    /* Ignore */
+                }
+
+                return 0;
+            }
+        }
+
+        /// <summary>
+        /// Gets the uptime in TimeSpan.
+        /// </summary>
+        public TimeSpan UptimeTimeSpan => TimeSpan.FromSeconds(Uptime);
+
+        /// <summary>
+        /// Placeholder for processor index
+        /// </summary>
+        private string Processor { get; set; }
+
+        /// <summary>
+        /// Returns a <see cref="string" /> that represents this instance.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="string" /> that represents this instance.
+        /// </returns>
+        public override string ToString()
+        {
+            var properties = typeof(SystemInfo).GetTypeInfo().GetProperties(BindingFlags.Instance | BindingFlags.Public)
+                .Where(p => p.CanRead && (
+                                p.PropertyType == typeof(string) ||
+                                p.PropertyType == typeof(string[]) ||
+                                p.PropertyType == typeof(int) ||
+                                p.PropertyType == typeof(bool) ||
+                                p.PropertyType == typeof(TimeSpan)))
+                .ToArray();
+
+            var properyValues = new List<string>
+            {
+                "System Information",
+                $"\t{nameof(WiringPiVersion),-22}: {WiringPiVersion}",
+                $"\t{nameof(RaspberryPiVersion),-22}: {RaspberryPiVersion}"
+            };
+
+            foreach (var property in properties)
+            {
+                if (property.PropertyType != typeof(string[]))
+                {
+                    properyValues.Add($"\t{property.Name,-22}: {property.GetValue(this)}");
+                }
+                else if (property.GetValue(this) is string[] allValues)
+                {
+                    var concatValues = string.Join(" ", allValues);
+                    properyValues.Add($"\t{property.Name,-22}: {concatValues}");
+                }
+            }
+
+            return string.Join(Environment.NewLine, properyValues.ToArray());
+        }
+    }
+}

Unosquare.RaspberryIO/Computer/WirelessNetworkInfo.cs

@@ -0,0 +1,23 @@
+namespace Unosquare.RaspberryIO.Computer
+{
+    /// <summary>
+    /// Represents a wireless network information
+    /// </summary>
+    public class WirelessNetworkInfo
+    {
+        /// <summary>
+        /// Gets the ESSID of the Wireless network.
+        /// </summary>
+        public string Name { get; internal set; }
+
+        /// <summary>
+        /// Gets the network quality.
+        /// </summary>
+        public string Quality { get; internal set; }
+
+        /// <summary>
+        /// Gets a value indicating whether this instance is encrypted.
+        /// </summary>
+        public bool IsEncrypted { get; internal set; }
+    }
+}

Unosquare.RaspberryIO/Gpio/Enums.cs

@@ -0,0 +1,579 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    /// <summary>
+    /// Defines the different drive modes of a GPIO pin
+    /// </summary>
+    public enum GpioPinDriveMode
+    {
+        /// <summary>
+        /// Input drive mode (perform reads)
+        /// </summary>
+        Input = 0,
+
+        /// <summary>
+        /// Output drive mode (perform writes)
+        /// </summary>
+        Output = 1,
+
+        /// <summary>
+        /// PWM output mode (only certain pins support this -- 2 of them at the moment)
+        /// </summary>
+        PwmOutput = 2,
+
+        /// <summary>
+        /// GPIO Clock output mode (only a pin supports this at this time)
+        /// </summary>
+        GpioClock = 3
+    }
+
+    /// <summary>
+    /// The GPIO pin resistor mode. This is used on input pins so that their
+    /// lines are not floating
+    /// </summary>
+    public enum GpioPinResistorPullMode
+    {
+        /// <summary>
+        /// Pull resistor not active. Line floating
+        /// </summary>
+        Off = 0,
+
+        /// <summary>
+        /// Pull resistor sets a default value of 0 on no-connects
+        /// </summary>
+        PullDown = 1,
+
+        /// <summary>
+        /// Pull resistor sets a default value of 1 on no-connects
+        /// </summary>
+        PullUp = 2,
+    }
+
+    /// <summary>
+    /// The PWM mode.
+    /// </summary>
+    public enum PwmMode
+    {
+        /// <summary>
+        /// PWM pulses are sent using mark-sign patterns (old school)
+        /// </summary>
+        MarkSign = 0,
+
+        /// <summary>
+        /// PWM pulses are sent as a balanced signal (default, newer mode)
+        /// </summary>
+        Balanced = 1,
+    }
+
+    /// <summary>
+    /// Defines the different edge detection modes  for pin interrupts
+    /// </summary>
+    public enum EdgeDetection
+    {
+        /// <summary>
+        /// Assumes edge detection was already setup externally
+        /// </summary>
+        ExternalSetup = 0,
+
+        /// <summary>
+        /// Falling Edge
+        /// </summary>
+        FallingEdge = 1,
+
+        /// <summary>
+        /// Rising edge
+        /// </summary>
+        RisingEdge = 2,
+
+        /// <summary>
+        /// Both, rising and falling edges
+        /// </summary>
+        RisingAndFallingEdges = 3
+    }
+
+    /// <summary>
+    /// Defines the GPIO Pin values 0 for low, 1 for High
+    /// </summary>
+    public enum GpioPinValue
+    {
+        /// <summary>
+        /// Digital high
+        /// </summary>
+        High = 1,
+
+        /// <summary>
+        /// Digital low
+        /// </summary>
+        Low = 0
+    }
+
+    /// <summary>
+    /// Defines the Header connectors available
+    /// </summary>
+    public enum GpioHeader
+    {
+        /// <summary>
+        /// Not defined
+        /// </summary>
+        None,
+
+        /// <summary>
+        /// The P1 connector (main connector)
+        /// </summary>
+        P1,
+
+        /// <summary>
+        /// The P5 connector (auxiliary, not commonly used)
+        /// </summary>
+        P5,
+    }
+
+    /// <summary>
+    /// Defines all the available Wiring Pi Pin Numbers
+    /// </summary>
+    public enum WiringPiPin
+    {
+        /// <summary>
+        /// The unknown
+        /// </summary>
+        Unknown = -1,
+
+        /// <summary>
+        /// The pin00
+        /// </summary>
+        Pin00 = 0,
+
+        /// <summary>
+        /// The pin01
+        /// </summary>
+        Pin01 = 1,
+
+        /// <summary>
+        /// The pin02
+        /// </summary>
+        Pin02 = 2,
+
+        /// <summary>
+        /// The pin03
+        /// </summary>
+        Pin03 = 3,
+
+        /// <summary>
+        /// The pin04
+        /// </summary>
+        Pin04 = 4,
+
+        /// <summary>
+        /// The pin05
+        /// </summary>
+        Pin05 = 5,
+
+        /// <summary>
+        /// The pin06
+        /// </summary>
+        Pin06 = 6,
+
+        /// <summary>
+        /// The pin07
+        /// </summary>
+        Pin07 = 7,
+
+        /// <summary>
+        /// The pin08
+        /// </summary>
+        Pin08 = 8,
+
+        /// <summary>
+        /// The pin09
+        /// </summary>
+        Pin09 = 9,
+
+        /// <summary>
+        /// The pin10
+        /// </summary>
+        Pin10 = 10,
+
+        /// <summary>
+        /// The pin11
+        /// </summary>
+        Pin11 = 11,
+
+        /// <summary>
+        /// The pin12
+        /// </summary>
+        Pin12 = 12,
+
+        /// <summary>
+        /// The pin13
+        /// </summary>
+        Pin13 = 13,
+
+        /// <summary>
+        /// The pin14
+        /// </summary>
+        Pin14 = 14,
+
+        /// <summary>
+        /// The pin15
+        /// </summary>
+        Pin15 = 15,
+
+        /// <summary>
+        /// The pin16
+        /// </summary>
+        Pin16 = 16,
+
+        /// <summary>
+        /// The pin17
+        /// </summary>
+        Pin17 = 17,
+
+        /// <summary>
+        /// The pin18
+        /// </summary>
+        Pin18 = 18,
+
+        /// <summary>
+        /// The pin19
+        /// </summary>
+        Pin19 = 19,
+
+        /// <summary>
+        /// The pin20
+        /// </summary>
+        Pin20 = 20,
+
+        /// <summary>
+        /// The pin21
+        /// </summary>
+        Pin21 = 21,
+
+        /// <summary>
+        /// The pin22
+        /// </summary>
+        Pin22 = 22,
+
+        /// <summary>
+        /// The pin23
+        /// </summary>
+        Pin23 = 23,
+
+        /// <summary>
+        /// The pin24
+        /// </summary>
+        Pin24 = 24,
+
+        /// <summary>
+        /// The pin25
+        /// </summary>
+        Pin25 = 25,
+
+        /// <summary>
+        /// The pin26
+        /// </summary>
+        Pin26 = 26,
+
+        /// <summary>
+        /// The pin27
+        /// </summary>
+        Pin27 = 27,
+
+        /// <summary>
+        /// The pin28
+        /// </summary>
+        Pin28 = 28,
+
+        /// <summary>
+        /// The pin29
+        /// </summary>
+        Pin29 = 29,
+
+        /// <summary>
+        /// The pin30
+        /// </summary>
+        Pin30 = 30,
+
+        /// <summary>
+        /// The pin31
+        /// </summary>
+        Pin31 = 31,
+    }
+
+    /// <summary>
+    /// Enumerates the different pins on the P1 Header
+    /// as commonly referenced by Raspberry Pi Documentation.
+    /// Enumeration values correspond to the physical pin number.
+    /// </summary>
+    public enum P1
+    {
+        /// <summary>
+        /// Header P1, GPIO Pin 02
+        /// </summary>
+        Gpio02 = 3,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 03
+        /// </summary>
+        Gpio03 = 5,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 04
+        /// </summary>
+        Gpio04 = 7,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 17
+        /// </summary>
+        Gpio17 = 11,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 27
+        /// </summary>
+        Gpio27 = 13,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 22
+        /// </summary>
+        Gpio22 = 15,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 10
+        /// </summary>
+        Gpio10 = 19,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 09
+        /// </summary>
+        Gpio09 = 21,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 11
+        /// </summary>
+        Gpio11 = 23,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 05
+        /// </summary>
+        Gpio05 = 29,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 06
+        /// </summary>
+        Gpio06 = 31,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 13
+        /// </summary>
+        Gpio13 = 33,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 19
+        /// </summary>
+        Gpio19 = 35,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 26
+        /// </summary>
+        Gpio26 = 37,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 14
+        /// </summary>
+        Gpio14 = 8,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 15
+        /// </summary>
+        Gpio15 = 10,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 18
+        /// </summary>
+        Gpio18 = 12,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 23
+        /// </summary>
+        Gpio23 = 16,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 24
+        /// </summary>
+        Gpio24 = 18,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 25
+        /// </summary>
+        Gpio25 = 22,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 08
+        /// </summary>
+        Gpio08 = 24,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 07
+        /// </summary>
+        Gpio07 = 26,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 12
+        /// </summary>
+        Gpio12 = 32,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 16
+        /// </summary>
+        Gpio16 = 36,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 20
+        /// </summary>
+        Gpio20 = 38,
+
+        /// <summary>
+        /// Header P1, GPIO Pin 21
+        /// </summary>
+        Gpio21 = 40
+    }
+
+    /// <summary>
+    /// Enumerates the different pins on the P5 Header
+    /// as commonly referenced by Raspberry Pi documentation.
+    /// Enumeration values correspond to the physical pin number.
+    /// </summary>
+    public enum P5
+    {
+        /// <summary>
+        /// Header P5, GPIO Pin 28
+        /// </summary>
+        Gpio28 = 3,
+
+        /// <summary>
+        /// Header P5, GPIO Pin 29
+        /// </summary>
+        Gpio29 = 4,
+
+        /// <summary>
+        /// Header P5, GPIO Pin 30
+        /// </summary>
+        Gpio30 = 5,
+
+        /// <summary>
+        /// Header P5, GPIO Pin 31
+        /// </summary>
+        Gpio31 = 6
+    }
+
+    /// <summary>
+    /// Defines the different pin capabilities
+    /// </summary>
+    public enum PinCapability
+    {
+        /// <summary>
+        /// General Purpose capability: Digital and Analog Read/Write
+        /// </summary>
+        GP,
+
+        /// <summary>
+        /// General Purpose Clock (not PWM)
+        /// </summary>
+        GPCLK,
+
+        /// <summary>
+        /// i2c data channel
+        /// </summary>
+        I2CSDA,
+
+        /// <summary>
+        /// i2c clock channel
+        /// </summary>
+        I2CSCL,
+
+        /// <summary>
+        /// SPI Master Out, Slave In channel
+        /// </summary>
+        SPIMOSI,
+
+        /// <summary>
+        /// SPI Master In, Slave Out channel
+        /// </summary>
+        SPIMISO,
+
+        /// <summary>
+        /// SPI Clock channel
+        /// </summary>
+        SPICLK,
+
+        /// <summary>
+        /// SPI Chip Select Channel
+        /// </summary>
+        SPICS,
+
+        /// <summary>
+        /// UART Request to Send Channel
+        /// </summary>
+        UARTRTS,
+
+        /// <summary>
+        /// UART Transmit Channel
+        /// </summary>
+        UARTTXD,
+
+        /// <summary>
+        /// UART Receive Channel
+        /// </summary>
+        UARTRXD,
+
+        /// <summary>
+        /// Hardware Pule Width Modulation
+        /// </summary>
+        PWM
+    }
+
+    /// <summary>
+    /// Defines the SPI channel numbers
+    /// </summary>
+    internal enum SpiChannelNumber
+    {
+        /// <summary>
+        /// The channel 0
+        /// </summary>
+        Channel0 = 0,
+
+        /// <summary>
+        /// The channel 1
+        /// </summary>
+        Channel1 = 1,
+    }
+
+    /// <summary>
+    /// Defines GPIO controller initialization modes
+    /// </summary>
+    internal enum ControllerMode
+    {
+        /// <summary>
+        /// The not initialized
+        /// </summary>
+        NotInitialized,
+
+        /// <summary>
+        /// The direct with wiring pi pins
+        /// </summary>
+        DirectWithWiringPiPins,
+
+        /// <summary>
+        /// The direct with BCM pins
+        /// </summary>
+        DirectWithBcmPins,
+
+        /// <summary>
+        /// The direct with header pins
+        /// </summary>
+        DirectWithHeaderPins,
+
+        /// <summary>
+        /// The file stream with hardware pins
+        /// </summary>
+        FileStreamWithHardwarePins,
+    }
+}

Unosquare.RaspberryIO/Gpio/GpioController.cs

@@ -0,0 +1,594 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using Native;
+    using Swan;
+    using Swan.Abstractions;
+    using System;
+    using System.Collections;
+    using System.Collections.Generic;
+    using System.Collections.ObjectModel;
+    using System.Linq;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// Represents a singleton of the Raspberry Pi GPIO controller
+    /// as an IReadOnlyCollection of GpioPins
+    /// Low level operations are accomplished by using the Wiring Pi library.
+    /// Use the Instance property to access the singleton's instance
+    /// </summary>
+    public sealed class GpioController : SingletonBase<GpioController>, IReadOnlyCollection<GpioPin>
+    {
+        #region Private Declarations
+
+        private const string WiringPiCodesEnvironmentVariable = "WIRINGPI_CODES";
+        private static readonly object SyncRoot = new object();
+        private readonly ReadOnlyCollection<GpioPin> _pinCollection;
+        private readonly ReadOnlyDictionary<int, GpioPin> _headerP1Pins;
+        private readonly ReadOnlyDictionary<int, GpioPin> _headerP5Pins;
+        private readonly Dictionary<WiringPiPin, GpioPin> _pinsByWiringPiPinNumber = new Dictionary<WiringPiPin, GpioPin>();
+
+        #endregion
+
+        #region Constructors and Initialization
+
+        /// <summary>
+        /// Prevents a default instance of the <see cref="GpioController" /> class from being created.
+        /// It in turn initializes the controller and registers the pin -- in that order.
+        /// </summary>
+        /// <exception cref="Exception">Unable to initialize the GPIO controller.</exception>
+        private GpioController()
+        {
+            if (_pinCollection != null)
+                return;
+
+            if (IsInitialized == false)
+            {
+                var initResult = Initialize(ControllerMode.DirectWithWiringPiPins);
+                if (initResult == false)
+                    throw new Exception("Unable to initialize the GPIO controller.");
+            }
+
+            #region Pin Registration (32 WiringPi Pins)
+
+            RegisterPin(GpioPin.Pin00.Value);
+            RegisterPin(GpioPin.Pin01.Value);
+            RegisterPin(GpioPin.Pin02.Value);
+            RegisterPin(GpioPin.Pin03.Value);
+            RegisterPin(GpioPin.Pin04.Value);
+            RegisterPin(GpioPin.Pin05.Value);
+            RegisterPin(GpioPin.Pin06.Value);
+            RegisterPin(GpioPin.Pin07.Value);
+            RegisterPin(GpioPin.Pin08.Value);
+            RegisterPin(GpioPin.Pin09.Value);
+            RegisterPin(GpioPin.Pin10.Value);
+            RegisterPin(GpioPin.Pin11.Value);
+            RegisterPin(GpioPin.Pin12.Value);
+            RegisterPin(GpioPin.Pin13.Value);
+            RegisterPin(GpioPin.Pin14.Value);
+            RegisterPin(GpioPin.Pin15.Value);
+            RegisterPin(GpioPin.Pin16.Value);
+            RegisterPin(GpioPin.Pin17.Value);
+            RegisterPin(GpioPin.Pin18.Value);
+            RegisterPin(GpioPin.Pin19.Value);
+            RegisterPin(GpioPin.Pin20.Value);
+            RegisterPin(GpioPin.Pin21.Value);
+            RegisterPin(GpioPin.Pin22.Value);
+            RegisterPin(GpioPin.Pin23.Value);
+            RegisterPin(GpioPin.Pin24.Value);
+            RegisterPin(GpioPin.Pin25.Value);
+            RegisterPin(GpioPin.Pin26.Value);
+            RegisterPin(GpioPin.Pin27.Value);
+            RegisterPin(GpioPin.Pin28.Value);
+            RegisterPin(GpioPin.Pin29.Value);
+            RegisterPin(GpioPin.Pin30.Value);
+            RegisterPin(GpioPin.Pin31.Value);
+
+            #endregion
+
+            _pinCollection = new ReadOnlyCollection<GpioPin>(_pinsByWiringPiPinNumber.Values.ToArray());
+            var headerP1 = new Dictionary<int, GpioPin>(_pinCollection.Count);
+            var headerP5 = new Dictionary<int, GpioPin>(_pinCollection.Count);
+            foreach (var pin in _pinCollection)
+            {
+                var target = pin.Header == GpioHeader.P1 ? headerP1 : headerP5;
+                target[pin.HeaderPinNumber] = pin;
+            }
+
+            _headerP1Pins = new ReadOnlyDictionary<int, GpioPin>(headerP1);
+            _headerP5Pins = new ReadOnlyDictionary<int, GpioPin>(headerP5);
+        }
+
+        /// <summary>
+        /// Determines if the underlying GPIO controller has been initialized properly.
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if the controller is properly initialized; otherwise, <c>false</c>.
+        /// </value>
+        public static bool IsInitialized
+        {
+            get
+            {
+                lock (SyncRoot)
+                {
+                    return Mode != ControllerMode.NotInitialized;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the number of registered pins in the controller.
+        /// </summary>
+        public int Count => _pinCollection.Count;
+
+        #endregion
+
+        #region Pin Addressing
+
+        /// <summary>
+        /// Gets the PWM base frequency (in Hz).
+        /// </summary>
+        public int PwmBaseFrequency => 19200000;
+
+        /// <summary>
+        /// Gets a red-only collection of all registered pins.
+        /// </summary>
+        public ReadOnlyCollection<GpioPin> Pins => _pinCollection;
+
+        /// <summary>
+        /// Provides all the pins on Header P1 of the Pi as a lookup by physical header pin number.
+        /// This header is the main header and it is the one commonly used.
+        /// </summary>
+        public ReadOnlyDictionary<int, GpioPin> HeaderP1 => _headerP1Pins;
+
+        /// <summary>
+        /// Provides all the pins on Header P5 of the Pi as a lookup by physical header pin number.
+        /// This header is the secondary header and it is rarely used.
+        /// </summary>
+        public ReadOnlyDictionary<int, GpioPin> HeaderP5 => _headerP5Pins;
+
+        #endregion
+
+        #region Individual Pin Properties
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 00.
+        /// </summary>
+        public GpioPin Pin00 => GpioPin.Pin00.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 01.
+        /// </summary>
+        public GpioPin Pin01 => GpioPin.Pin01.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 02.
+        /// </summary>
+        public GpioPin Pin02 => GpioPin.Pin02.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 03.
+        /// </summary>
+        public GpioPin Pin03 => GpioPin.Pin03.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 04.
+        /// </summary>
+        public GpioPin Pin04 => GpioPin.Pin04.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 05.
+        /// </summary>
+        public GpioPin Pin05 => GpioPin.Pin05.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 06.
+        /// </summary>
+        public GpioPin Pin06 => GpioPin.Pin06.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 07.
+        /// </summary>
+        public GpioPin Pin07 => GpioPin.Pin07.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 08.
+        /// </summary>
+        public GpioPin Pin08 => GpioPin.Pin08.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 09.
+        /// </summary>
+        public GpioPin Pin09 => GpioPin.Pin09.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 10.
+        /// </summary>
+        public GpioPin Pin10 => GpioPin.Pin10.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 11.
+        /// </summary>
+        public GpioPin Pin11 => GpioPin.Pin11.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 12.
+        /// </summary>
+        public GpioPin Pin12 => GpioPin.Pin12.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 13.
+        /// </summary>
+        public GpioPin Pin13 => GpioPin.Pin13.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 14.
+        /// </summary>
+        public GpioPin Pin14 => GpioPin.Pin14.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 15.
+        /// </summary>
+        public GpioPin Pin15 => GpioPin.Pin15.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 16.
+        /// </summary>
+        public GpioPin Pin16 => GpioPin.Pin16.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 17.
+        /// </summary>
+        public GpioPin Pin17 => GpioPin.Pin17.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 18.
+        /// </summary>
+        public GpioPin Pin18 => GpioPin.Pin18.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 19.
+        /// </summary>
+        public GpioPin Pin19 => GpioPin.Pin19.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 20.
+        /// </summary>
+        public GpioPin Pin20 => GpioPin.Pin20.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 21.
+        /// </summary>
+        public GpioPin Pin21 => GpioPin.Pin21.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 22.
+        /// </summary>
+        public GpioPin Pin22 => GpioPin.Pin22.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 23.
+        /// </summary>
+        public GpioPin Pin23 => GpioPin.Pin23.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 24.
+        /// </summary>
+        public GpioPin Pin24 => GpioPin.Pin24.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 25.
+        /// </summary>
+        public GpioPin Pin25 => GpioPin.Pin25.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 26.
+        /// </summary>
+        public GpioPin Pin26 => GpioPin.Pin26.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 27.
+        /// </summary>
+        public GpioPin Pin27 => GpioPin.Pin27.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 28.
+        /// </summary>
+        public GpioPin Pin28 => GpioPin.Pin28.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 29.
+        /// </summary>
+        public GpioPin Pin29 => GpioPin.Pin29.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 30.
+        /// </summary>
+        public GpioPin Pin30 => GpioPin.Pin30.Value;
+
+        /// <summary>
+        /// Provides direct access to Pin known to Wiring Pi (not the pin header number) as Pin 31.
+        /// </summary>
+        public GpioPin Pin31 => GpioPin.Pin31.Value;
+
+        #endregion
+
+        #region Indexers
+
+        /// <summary>
+        /// Gets or sets the initialization mode.
+        /// </summary>
+        private static ControllerMode Mode { get; set; } = ControllerMode.NotInitialized;
+
+        /// <summary>
+        /// Gets the <see cref="GpioPin"/> with the specified Wiring Pi pin number.
+        /// </summary>
+        /// <value>
+        /// The <see cref="GpioPin"/>.
+        /// </value>
+        /// <param name="pinNumber">The pin number.</param>
+        /// <returns>A reference to the GPIO pin</returns>
+        public GpioPin this[WiringPiPin pinNumber] => _pinsByWiringPiPinNumber[pinNumber];
+
+        /// <summary>
+        /// Gets the <see cref="GpioPin"/> with the specified pin number.
+        /// </summary>
+        /// <value>
+        /// The <see cref="GpioPin"/>.
+        /// </value>
+        /// <param name="pinNumber">The pin number.</param>
+        /// <returns>A reference to the GPIO pin</returns>
+        public GpioPin this[P1 pinNumber] => HeaderP1[(int)pinNumber];
+
+        /// <summary>
+        /// Gets the <see cref="GpioPin"/> with the specified pin number.
+        /// </summary>
+        /// <value>
+        /// The <see cref="GpioPin"/>.
+        /// </value>
+        /// <param name="pinNumber">The pin number.</param>
+        /// <returns>A reference to the GPIO pin</returns>
+        public GpioPin this[P5 pinNumber] => HeaderP5[(int)pinNumber];
+
+        /// <summary>
+        /// Gets the <see cref="GpioPin"/> with the specified Wiring Pi pin number.
+        /// Use the HeaderP1 and HeaderP5 lookups if you would like to retrieve pins by physical pin number.
+        /// </summary>
+        /// <value>
+        /// The <see cref="GpioPin"/>.
+        /// </value>
+        /// <param name="wiringPiPinNumber">The pin number as defined by Wiring Pi. This is not the header pin number as pin number in headers are obvoisly repeating.</param>
+        /// <returns>A reference to the GPIO pin</returns>
+        /// <exception cref="IndexOutOfRangeException">When the pin index is not found</exception>
+        public GpioPin this[int wiringPiPinNumber]
+        {
+            get
+            {
+                if (Enum.IsDefined(typeof(WiringPiPin), wiringPiPinNumber) == false)
+                    throw new IndexOutOfRangeException($"Pin {wiringPiPinNumber} is not registered in the GPIO controller.");
+
+                return _pinsByWiringPiPinNumber[(WiringPiPin)wiringPiPinNumber];
+            }
+        }
+
+        #endregion
+
+        #region Pin Group Methods (Read, Write, Pad Drive)
+
+        /// <summary>
+        /// This sets the “strength” of the pad drivers for a particular group of pins.
+        /// There are 3 groups of pins and the drive strength is from 0 to 7.
+        /// Do not use this unless you know what you are doing.
+        /// </summary>
+        /// <param name="group">The group.</param>
+        /// <param name="value">The value.</param>
+        public void SetPadDrive(int group, int value)
+        {
+            lock (SyncRoot)
+            {
+                WiringPi.SetPadDrive(group, value);
+            }
+        }
+
+        /// <summary>
+        /// This sets the “strength” of the pad drivers for a particular group of pins.
+        /// There are 3 groups of pins and the drive strength is from 0 to 7.
+        /// Do not use this unless you know what you are doing.
+        /// </summary>
+        /// <param name="group">The group.</param>
+        /// <param name="value">The value.</param>
+        /// <returns>The awaitable task</returns>
+        public Task SetPadDriveAsync(int group, int value) => Task.Run(() => { SetPadDrive(group, value); });
+
+        /// <summary>
+        /// This writes the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to set all 8 bits at once to a particular value,
+        /// although it still takes two write operations to the Pi’s GPIO hardware.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <exception cref="InvalidOperationException">PinMode</exception>
+        public void WriteByte(byte value)
+        {
+            lock (SyncRoot)
+            {
+                if (this.Skip(0).Take(8).Any(p => p.PinMode != GpioPinDriveMode.Output))
+                {
+                    throw new InvalidOperationException(
+                        $"All firts 8 pins (0 to 7) need their {nameof(GpioPin.PinMode)} to be set to {GpioPinDriveMode.Output}");
+                }
+
+                WiringPi.DigitalWriteByte(value);
+            }
+        }
+
+        /// <summary>
+        /// This writes the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to set all 8 bits at once to a particular value,
+        /// although it still takes two write operations to the Pi’s GPIO hardware.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteByteAsync(byte value) => Task.Run(() => { WriteByte(value); });
+
+        /// <summary>
+        /// This reads the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to get all 8 bits at once to a particular value.
+        /// Please note this function is undocumented and unsopported
+        /// </summary>
+        /// <returns>A byte from the GPIO</returns>
+        /// <exception cref="InvalidOperationException">PinMode</exception>
+        public byte ReadByte()
+        {
+            lock (SyncRoot)
+            {
+                if (this.Skip(0).Take(8).Any(p =>
+                    p.PinMode != GpioPinDriveMode.Input && p.PinMode != GpioPinDriveMode.Output))
+                {
+                    throw new InvalidOperationException(
+                        $"All firts 8 pins (0 to 7) need their {nameof(GpioPin.PinMode)} to be set to {GpioPinDriveMode.Input} or {GpioPinDriveMode.Output}");
+                }
+
+                return (byte)WiringPi.DigitalReadByte();
+            }
+        }
+
+        /// <summary>
+        /// This reads the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to get all 8 bits at once to a particular value.
+        /// Please note this function is undocumented and unsopported
+        /// </summary>
+        /// <returns>A byte from the GPIO</returns>
+        public Task<byte> ReadByteAsync() => Task.Run(() => ReadByte());
+
+        #endregion
+
+        #region IReadOnlyCollection Implementation
+
+        /// <summary>
+        /// Returns an enumerator that iterates through the collection.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="T:System.Collections.Generic.IEnumerator`1" /> that can be used to iterate through the collection.
+        /// </returns>
+        public IEnumerator<GpioPin> GetEnumerator() => _pinCollection.GetEnumerator();
+
+        /// <summary>
+        /// Returns an enumerator that iterates through the collection.
+        /// </summary>
+        /// <returns>
+        /// An <see cref="T:System.Collections.IEnumerator" /> object that can be used to iterate through the collection.
+        /// </returns>
+        IEnumerator IEnumerable.GetEnumerator() => _pinCollection.GetEnumerator();
+
+        #endregion
+
+        #region Helper and Init Methods
+
+        /// <summary>
+        /// Gets the GPIO pin by BCM pin number.
+        /// </summary>
+        /// <param name="bcmPinNumber">The BCM pin number.</param>
+        /// <returns>The GPIO pin</returns>
+        public GpioPin GetGpioPinByBcmPinNumber(int bcmPinNumber) => this.First(pin => pin.BcmPinNumber == bcmPinNumber);
+
+        /// <summary>
+        /// Converts the Wirings Pi pin number to the BCM pin number.
+        /// </summary>
+        /// <param name="wiringPiPinNumber">The wiring pi pin number.</param>
+        /// <returns>The converted pin</returns>
+        internal static int WiringPiToBcmPinNumber(int wiringPiPinNumber)
+        {
+            lock (SyncRoot)
+            {
+                return WiringPi.WpiPinToGpio(wiringPiPinNumber);
+            }
+        }
+
+        /// <summary>
+        /// Converts the Physical (Header) pin number to BCM pin number.
+        /// </summary>
+        /// <param name="headerPinNumber">The header pin number.</param>
+        /// <returns>The converted pin</returns>
+        internal static int HaderToBcmPinNumber(int headerPinNumber)
+        {
+            lock (SyncRoot)
+            {
+                return WiringPi.PhysPinToGpio(headerPinNumber);
+            }
+        }
+
+        /// <summary>
+        /// Short-hand method of registering pins
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        private void RegisterPin(GpioPin pin)
+        {
+            if (_pinsByWiringPiPinNumber.ContainsKey(pin.WiringPiPinNumber) == false)
+                _pinsByWiringPiPinNumber[pin.WiringPiPinNumber] = pin;
+            else
+                throw new InvalidOperationException($"Pin {pin.WiringPiPinNumber} has been registered");
+        }
+
+        /// <summary>
+        /// Initializes the controller given the initialization mode and pin numbering scheme
+        /// </summary>
+        /// <param name="mode">The mode.</param>
+        /// <returns>True when successful.</returns>
+        /// <exception cref="PlatformNotSupportedException">
+        /// This library does not support the platform
+        /// </exception>
+        /// <exception cref="InvalidOperationException">Library was already Initialized</exception>
+        /// <exception cref="ArgumentException">The init mode is invalid</exception>
+        private bool Initialize(ControllerMode mode)
+        {
+            if (Runtime.OS != Swan.OperatingSystem.Unix)
+                throw new PlatformNotSupportedException("This library does not support the platform");
+
+            lock (SyncRoot)
+            {
+                if (IsInitialized)
+                    throw new InvalidOperationException($"Cannot call {nameof(Initialize)} more than once.");
+
+                Environment.SetEnvironmentVariable(WiringPiCodesEnvironmentVariable, "1", EnvironmentVariableTarget.Process);
+                int setpuResult;
+
+                switch (mode)
+                {
+                    case ControllerMode.DirectWithWiringPiPins:
+                        {
+                            setpuResult = WiringPi.WiringPiSetup();
+                            break;
+                        }
+
+                    case ControllerMode.DirectWithBcmPins:
+                        {
+                            setpuResult = WiringPi.WiringPiSetupGpio();
+                            break;
+                        }
+
+                    case ControllerMode.DirectWithHeaderPins:
+                        {
+                            setpuResult = WiringPi.WiringPiSetupPhys();
+                            break;
+                        }
+
+                    case ControllerMode.FileStreamWithHardwarePins:
+                        {
+                            setpuResult = WiringPi.WiringPiSetupSys();
+                            break;
+                        }
+
+                    default:
+                        {
+                            throw new ArgumentException($"'{mode}' is not a valid initialization mode.");
+                        }
+                }
+
+                Mode = setpuResult == 0 ? mode : ControllerMode.NotInitialized;
+                return IsInitialized;
+            }
+        }
+
+        #endregion
+
+    }
+}

Unosquare.RaspberryIO/Gpio/GpioPin.Factory.cs

@@ -0,0 +1,201 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using System;
+
+    public partial class GpioPin
+    {
+        #region Static Pin Definitions
+
+        internal static readonly Lazy<GpioPin> Pin08 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin08, 3)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.I2CSDA },
+            Name = "BCM 2 (SDA)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin09 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin09, 5)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.I2CSCL },
+            Name = "BCM 3 (SCL)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin07 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin07, 7)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.GPCLK },
+            Name = "BCM 4 (GPCLK0)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin00 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin00, 11)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.UARTRTS },
+            Name = "BCM 17"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin02 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin02, 13)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 27"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin03 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin03, 15)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 22"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin12 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin12, 19)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPIMOSI },
+            Name = "BCM 10 (MOSI)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin13 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin13, 21)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPIMISO },
+            Name = "BCM 9 (MISO)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin14 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin14, 23)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPICLK },
+            Name = "BCM 11 (SCLCK)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin30 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin30, 27)
+        {
+            Capabilities = new[] { PinCapability.I2CSDA },
+            Name = "BCM 0 (ID_SD)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin31 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin31, 28)
+        {
+            Capabilities = new[] { PinCapability.I2CSCL },
+            Name = "BCM 1 (ID_SC)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin11 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin11, 26)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPICS },
+            Name = "BCM 7 (CE1)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin10 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin10, 24)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPICS },
+            Name = "BCM 8 (CE0)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin06 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin06, 22)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 25"
+        });
+        internal static readonly Lazy<GpioPin> Pin05 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin05, 18)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 24"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin04 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin04, 16)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 23"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin01 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin01, 12)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.PWM },
+            Name = "BCM 18 (PWM0)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin16 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin16, 10)
+        {
+            Capabilities = new[] { PinCapability.UARTRXD },
+            Name = "BCM 15 (RXD)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin15 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin15, 8)
+        {
+            Capabilities = new[] { PinCapability.UARTTXD },
+            Name = "BCM 14 (TXD)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin21 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin21, 29)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 5"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin22 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin22, 31)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 6"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin23 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin23, 33)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.PWM },
+            Name = "BCM 13 (PWM1)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin24 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin24, 35)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPIMISO },
+            Name = "BCM 19 (MISO)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin25 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin25, 37)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 26"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin29 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin29, 40)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPICLK },
+            Name = "BCM 21 (SCLK)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin28 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin28, 38)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.SPIMOSI },
+            Name = "BCM 20 (MOSI)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin27 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin27, 36)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 16"
+        });
+        internal static readonly Lazy<GpioPin> Pin26 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin26, 32)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 12 (PWM0)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin17 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin17, 3)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.I2CSDA },
+            Name = "BCM 28 (SDA)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin18 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin18, 4)
+        {
+            Capabilities = new[] { PinCapability.GP, PinCapability.I2CSCL },
+            Name = "BCM 29 (SCL)"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin19 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin19, 5)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 30"
+        });
+
+        internal static readonly Lazy<GpioPin> Pin20 = new Lazy<GpioPin>(() => new GpioPin(WiringPiPin.Pin20, 6)
+        {
+            Capabilities = new[] { PinCapability.GP },
+            Name = "BCM 31"
+        });
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Gpio/GpioPin.cs

@@ -0,0 +1,648 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using Native;
+    using Swan;
+    using System;
+    using System.Linq;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// Represents a GPIO Pin, its location and its capabilities.
+    /// Full pin reference available here:
+    /// http://pinout.xyz/pinout/pin31_gpio6 and  http://wiringpi.com/pins/
+    /// </summary>
+    public sealed partial class GpioPin
+    {
+        #region Property Backing
+
+        private readonly object _syncLock = new object();
+        private GpioPinDriveMode m_PinMode;
+        private GpioPinResistorPullMode m_ResistorPullMode;
+        private int m_PwmRegister;
+        private PwmMode m_PwmMode = PwmMode.Balanced;
+        private uint m_PwmRange = 1024;
+        private int m_PwmClockDivisor = 1;
+        private int m_SoftPwmValue = -1;
+        private int m_SoftToneFrequency = -1;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GpioPin"/> class.
+        /// </summary>
+        /// <param name="wiringPiPinNumber">The wiring pi pin number.</param>
+        /// <param name="headerPinNumber">The header pin number.</param>
+        private GpioPin(WiringPiPin wiringPiPinNumber, int headerPinNumber)
+        {
+            PinNumber = (int)wiringPiPinNumber;
+            WiringPiPinNumber = wiringPiPinNumber;
+            BcmPinNumber = GpioController.WiringPiToBcmPinNumber((int)wiringPiPinNumber);
+            HeaderPinNumber = headerPinNumber;
+            Header = (PinNumber >= 17 && PinNumber <= 20) ? GpioHeader.P5 : GpioHeader.P1;
+        }
+
+        #endregion
+
+        #region Pin Properties
+
+        /// <summary>
+        /// Gets or sets the Wiring Pi pin number as an integer.
+        /// </summary>
+        public int PinNumber { get; }
+
+        /// <summary>
+        /// Gets the WiringPi Pin number
+        /// </summary>
+        public WiringPiPin WiringPiPinNumber { get; }
+
+        /// <summary>
+        /// Gets the BCM chip (hardware) pin number.
+        /// </summary>
+        public int BcmPinNumber { get; }
+
+        /// <summary>
+        /// Gets or the physical header (physical board) pin number.
+        /// </summary>
+        public int HeaderPinNumber { get; }
+
+        /// <summary>
+        /// Gets the pin's header (physical board) location.
+        /// </summary>
+        public GpioHeader Header { get; }
+
+        /// <summary>
+        /// Gets the friendly name of the pin.
+        /// </summary>
+        public string Name { get; private set; }
+
+        /// <summary>
+        /// Gets the hardware mode capabilities of this pin.
+        /// </summary>
+        public PinCapability[] Capabilities { get; private set; }
+
+        #endregion
+
+        #region Hardware-Specific Properties
+
+        /// <summary>
+        /// Gets or sets the pin operating mode.
+        /// </summary>
+        /// <value>
+        /// The pin mode.
+        /// </value>
+        /// <exception cref="NotSupportedException">Thrown when a pin does not support the given operation mode.</exception>
+        public GpioPinDriveMode PinMode
+        {
+            get => m_PinMode;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    var mode = value;
+                    if ((mode == GpioPinDriveMode.GpioClock && Capabilities.Contains(PinCapability.GPCLK) == false) ||
+                        (mode == GpioPinDriveMode.PwmOutput && Capabilities.Contains(PinCapability.PWM) == false) ||
+                        (mode == GpioPinDriveMode.Input && Capabilities.Contains(PinCapability.GP) == false) ||
+                        (mode == GpioPinDriveMode.Output && Capabilities.Contains(PinCapability.GP) == false))
+                    {
+                        throw new NotSupportedException(
+                            $"Pin {WiringPiPinNumber} '{Name}' does not support mode '{mode}'. Pin capabilities are limited to: {string.Join(", ", Capabilities)}");
+                    }
+
+                    WiringPi.PinMode(PinNumber, (int)mode);
+                    m_PinMode = mode;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the interrupt callback. Returns null if no interrupt
+        /// has been registered.
+        /// </summary>
+        public InterruptServiceRoutineCallback InterruptCallback { get; private set; }
+
+        /// <summary>
+        /// Gets the interrupt edge detection mode.
+        /// </summary>
+        public EdgeDetection InterruptEdgeDetection { get; private set; } = EdgeDetection.ExternalSetup;
+
+        #endregion
+
+        #region Hardware PWM Members
+
+        /// <summary>
+        /// This sets or gets the pull-up or pull-down resistor mode on the pin, which should be set as an input.
+        /// Unlike the Arduino, the BCM2835 has both pull-up an down internal resistors.
+        /// The parameter pud should be; PUD_OFF, (no pull up/down), PUD_DOWN (pull to ground) or PUD_UP (pull to 3.3v)
+        /// The internal pull up/down resistors have a value of approximately 50KΩ on the Raspberry Pi.
+        /// </summary>
+        public GpioPinResistorPullMode InputPullMode
+        {
+            get => PinMode == GpioPinDriveMode.Input ? m_ResistorPullMode : GpioPinResistorPullMode.Off;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (PinMode != GpioPinDriveMode.Input)
+                    {
+                        m_ResistorPullMode = GpioPinResistorPullMode.Off;
+                        throw new InvalidOperationException(
+                            $"Unable to set the {nameof(InputPullMode)} for pin {PinNumber} because operating mode is {PinMode}."
+                            + $" Setting the {nameof(InputPullMode)} is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Input}");
+                    }
+
+                    WiringPi.PullUpDnControl(PinNumber, (int)value);
+                    m_ResistorPullMode = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the PWM register. Values should be between 0 and 1024
+        /// </summary>
+        /// <value>
+        /// The PWM register.
+        /// </value>
+        public int PwmRegister
+        {
+            get => m_PwmRegister;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (PinMode != GpioPinDriveMode.PwmOutput)
+                    {
+                        m_PwmRegister = 0;
+
+                        throw new InvalidOperationException(
+                            $"Unable to write PWM register for pin {PinNumber} because operating mode is {PinMode}."
+                            + $" Writing the PWM register is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.PwmOutput}");
+                    }
+
+                    var val = value.Clamp(0, 1024);
+
+                    WiringPi.PwmWrite(PinNumber, val);
+                    m_PwmRegister = val;
+                }
+            }
+        }
+
+        /// <summary>
+        /// The PWM generator can run in 2 modes – “balanced” and “mark:space”. The mark:space mode is traditional,
+        /// however the default mode in the Pi is “balanced”.
+        /// </summary>
+        /// <value>
+        /// The PWM mode.
+        /// </value>
+        /// <exception cref="InvalidOperationException">When pin mode is not set a Pwn output</exception>
+        public PwmMode PwmMode
+        {
+            get => PinMode == GpioPinDriveMode.PwmOutput ? m_PwmMode : PwmMode.Balanced;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (PinMode != GpioPinDriveMode.PwmOutput)
+                    {
+                        m_PwmMode = PwmMode.Balanced;
+
+                        throw new InvalidOperationException(
+                            $"Unable to set PWM mode for pin {PinNumber} because operating mode is {PinMode}."
+                            + $" Setting the PWM mode is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.PwmOutput}");
+                    }
+
+                    WiringPi.PwmSetMode((int)value);
+                    m_PwmMode = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// This sets the range register in the PWM generator. The default is 1024.
+        /// </summary>
+        /// <value>
+        /// The PWM range.
+        /// </value>
+        /// <exception cref="InvalidOperationException">When pin mode is not set to PWM output</exception>
+        public uint PwmRange
+        {
+            get => PinMode == GpioPinDriveMode.PwmOutput ? m_PwmRange : 0;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (PinMode != GpioPinDriveMode.PwmOutput)
+                    {
+                        m_PwmRange = 1024;
+
+                        throw new InvalidOperationException(
+                            $"Unable to set PWM range for pin {PinNumber} because operating mode is {PinMode}."
+                            + $" Setting the PWM range is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.PwmOutput}");
+                    }
+
+                    WiringPi.PwmSetRange(value);
+                    m_PwmRange = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the PWM clock divisor.
+        /// </summary>
+        /// <value>
+        /// The PWM clock divisor.
+        /// </value>
+        /// <exception cref="InvalidOperationException">When pin mode is not set to PWM output</exception>
+        public int PwmClockDivisor
+        {
+            get => PinMode == GpioPinDriveMode.PwmOutput ? m_PwmClockDivisor : 0;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (PinMode != GpioPinDriveMode.PwmOutput)
+                    {
+                        m_PwmClockDivisor = 1;
+
+                        throw new InvalidOperationException(
+                            $"Unable to set PWM range for pin {PinNumber} because operating mode is {PinMode}."
+                            + $" Setting the PWM range is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.PwmOutput}");
+                    }
+
+                    WiringPi.PwmSetClock(value);
+                    m_PwmClockDivisor = value;
+                }
+            }
+        }
+
+        #endregion
+
+        #region Software Tone Members
+
+        /// <summary>
+        /// Gets a value indicating whether this instance is in software based tone generator mode.
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if this instance is in soft tone mode; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsInSoftToneMode => m_SoftToneFrequency >= 0;
+
+        /// <summary>
+        /// Gets or sets the soft tone frequency. 0 to 5000 Hz is typical
+        /// </summary>
+        /// <value>
+        /// The soft tone frequency.
+        /// </value>
+        /// <exception cref="InvalidOperationException">When soft tones cannot be initialized on the pin</exception>
+        public int SoftToneFrequency
+        {
+            get => m_SoftToneFrequency;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (IsInSoftToneMode == false)
+                    {
+                        var setupResult = WiringPi.SoftToneCreate(PinNumber);
+                        if (setupResult != 0)
+                        {
+                            throw new InvalidOperationException(
+                                $"Unable to initialize soft tone on pin {PinNumber}. Error Code: {setupResult}");
+                        }
+                    }
+
+                    WiringPi.SoftToneWrite(PinNumber, value);
+                    m_SoftToneFrequency = value;
+                }
+            }
+        }
+
+        #endregion
+
+        #region Software PWM Members
+
+        /// <summary>
+        /// Gets a value indicating whether this pin is in software based PWM mode.
+        /// </summary>
+        /// <value>
+        /// <c>true</c> if this instance is in soft PWM mode; otherwise, <c>false</c>.
+        /// </value>
+        public bool IsInSoftPwmMode => m_SoftPwmValue >= 0;
+
+        /// <summary>
+        /// Gets or sets the software PWM value on the pin.
+        /// </summary>
+        /// <value>
+        /// The soft PWM value.
+        /// </value>
+        /// <exception cref="InvalidOperationException">StartSoftPwm</exception>
+        public int SoftPwmValue
+        {
+            get => m_SoftPwmValue;
+
+            set
+            {
+                lock (_syncLock)
+                {
+                    if (IsInSoftPwmMode && value >= 0)
+                    {
+                        WiringPi.SoftPwmWrite(PinNumber, value);
+                        m_SoftPwmValue = value;
+                    }
+                    else
+                    {
+                        throw new InvalidOperationException($"Software PWM requires a call to {nameof(StartSoftPwm)}.");
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the software PWM range used upon starting the PWM.
+        /// </summary>
+        public int SoftPwmRange { get; private set; } = -1;
+
+        /// <summary>
+        /// Starts the software based PWM on this pin.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <param name="range">The range.</param>
+        /// <exception cref="NotSupportedException">When the pin does not suppoert PWM</exception>
+        /// <exception cref="InvalidOperationException">StartSoftPwm
+        /// or</exception>
+        public void StartSoftPwm(int value, int range)
+        {
+            lock (_syncLock)
+            {
+                if (Capabilities.Contains(PinCapability.GP) == false)
+                    throw new NotSupportedException($"Pin {PinNumber} does not support software PWM");
+
+                if (IsInSoftPwmMode)
+                    throw new InvalidOperationException($"{nameof(StartSoftPwm)} has already been called.");
+
+                var startResult = WiringPi.SoftPwmCreate(PinNumber, value, range);
+
+                if (startResult == 0)
+                {
+                    m_SoftPwmValue = value;
+                    SoftPwmRange = range;
+                }
+                else
+                {
+                    throw new InvalidOperationException(
+                        $"Could not start software based PWM on pin {PinNumber}. Error code: {startResult}");
+                }
+            }
+        }
+
+        #endregion
+
+        #region Output Mode (Write) Members
+
+        /// <summary>
+        /// Writes the specified pin value.
+        /// This method performs a digital write
+        /// </summary>
+        /// <param name="value">The value.</param>
+        public void Write(GpioPinValue value)
+        {
+            lock (_syncLock)
+            {
+                if (PinMode != GpioPinDriveMode.Output)
+                {
+                    throw new InvalidOperationException(
+                        $"Unable to write to pin {PinNumber} because operating mode is {PinMode}."
+                        + $" Writes are only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Output}");
+                }
+
+                WiringPi.DigitalWrite(PinNumber, (int)value);
+            }
+        }
+
+        /// <summary>
+        /// Writes the value asynchronously.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteAsync(GpioPinValue value) => Task.Run(() => { Write(value); });
+
+        /// <summary>
+        /// Writes the specified bit value.
+        /// This method performs a digital write
+        /// </summary>
+        /// <param name="value">if set to <c>true</c> [value].</param>
+        public void Write(bool value)
+            => Write(value ? GpioPinValue.High : GpioPinValue.Low);
+
+        /// <summary>
+        /// Writes the specified bit value.
+        /// This method performs a digital write
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>
+        /// The awaitable task
+        /// </returns>
+        public Task WriteAsync(bool value) => Task.Run(() => { Write(value); });
+
+        /// <summary>
+        /// Writes the specified value. 0 for low, any other value for high
+        /// This method performs a digital write
+        /// </summary>
+        /// <param name="value">The value.</param>
+        public void Write(int value) => Write(value != 0 ? GpioPinValue.High : GpioPinValue.Low);
+
+        /// <summary>
+        /// Writes the specified value. 0 for low, any other value for high
+        /// This method performs a digital write
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteAsync(int value) => Task.Run(() => { Write(value); });
+
+        /// <summary>
+        /// Writes the specified value as an analog level.
+        /// You will need to register additional analog modules to enable this function for devices such as the Gertboard.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        public void WriteLevel(int value)
+        {
+            lock (_syncLock)
+            {
+                if (PinMode != GpioPinDriveMode.Output)
+                {
+                    throw new InvalidOperationException(
+                        $"Unable to write to pin {PinNumber} because operating mode is {PinMode}."
+                        + $" Writes are only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Output}");
+                }
+
+                WiringPi.AnalogWrite(PinNumber, value);
+            }
+        }
+
+        /// <summary>
+        /// Writes the specified value as an analog level.
+        /// You will need to register additional analog modules to enable this function for devices such as the Gertboard.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteLevelAsync(int value) => Task.Run(() => { WriteLevel(value); });
+
+        #endregion
+
+        #region Input Mode (Read) Members
+
+        /// <summary>
+        /// Wait for specific pin status
+        /// </summary>
+        /// <param name="status">status to check</param>
+        /// <param name="timeOutMillisecond">timeout to reach status</param>
+        /// <returns>true/false</returns>
+        public bool WaitForValue(GpioPinValue status, int timeOutMillisecond)
+        {
+            if (PinMode != GpioPinDriveMode.Input)
+            {
+                throw new InvalidOperationException(
+                    $"Unable to read from pin {PinNumber} because operating mode is {PinMode}."
+                    + $" Reads are only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Input}");
+            }
+
+            var hrt = new HighResolutionTimer();
+            hrt.Start();
+            do
+            {
+                if (ReadValue() == status)
+                    return true;
+
+                Pi.Timing.SleepMicroseconds(101); // 101 uses nanosleep as opposed to a loop.
+            }
+            while (hrt.ElapsedMilliseconds <= timeOutMillisecond);
+
+            return false;
+        }
+
+        /// <summary>
+        /// Reads the digital value on the pin as a boolean value.
+        /// </summary>
+        /// <returns>The state of the pin</returns>
+        public bool Read()
+        {
+            lock (_syncLock)
+            {
+                if (PinMode != GpioPinDriveMode.Input && PinMode != GpioPinDriveMode.Output)
+                {
+                    throw new InvalidOperationException(
+                        $"Unable to read from pin {PinNumber} because operating mode is {PinMode}."
+                        + $" Reads are only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Input} or {GpioPinDriveMode.Output}");
+                }
+
+                return WiringPi.DigitalRead(PinNumber) != 0;
+            }
+        }
+
+        /// <summary>
+        /// Reads the digital value on the pin as a boolean value.
+        /// </summary>
+        /// <returns>The state of the pin</returns>
+        public Task<bool> ReadAsync() => Task.Run(() => Read());
+
+        /// <summary>
+        /// Reads the digital value on the pin as a High or Low value.
+        /// </summary>
+        /// <returns>The state of the pin</returns>
+        public GpioPinValue ReadValue()
+            => Read() ? GpioPinValue.High : GpioPinValue.Low;
+
+        /// <summary>
+        /// Reads the digital value on the pin as a High or Low value.
+        /// </summary>
+        /// <returns>The state of the pin</returns>
+        public Task<GpioPinValue> ReadValueAsync() => Task.Run(() => ReadValue());
+
+        /// <summary>
+        /// Reads the analog value on the pin.
+        /// This returns the value read on the supplied analog input pin. You will need to register
+        /// additional analog modules to enable this function for devices such as the Gertboard,
+        /// quick2Wire analog board, etc.
+        /// </summary>
+        /// <returns>The analog level</returns>
+        /// <exception cref="InvalidOperationException">When the pin mode is not configured as an input.</exception>
+        public int ReadLevel()
+        {
+            lock (_syncLock)
+            {
+                if (PinMode != GpioPinDriveMode.Input)
+                {
+                    throw new InvalidOperationException(
+                        $"Unable to read from pin {PinNumber} because operating mode is {PinMode}."
+                        + $" Reads are only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Input}");
+                }
+
+                return WiringPi.AnalogRead(PinNumber);
+            }
+        }
+
+        /// <summary>
+        /// Reads the analog value on the pin.
+        /// This returns the value read on the supplied analog input pin. You will need to register
+        /// additional analog modules to enable this function for devices such as the Gertboard,
+        /// quick2Wire analog board, etc.
+        /// </summary>
+        /// <returns>The analog level</returns>
+        public Task<int> ReadLevelAsync() => Task.Run(() => ReadLevel());
+
+        #endregion
+
+        #region Interrupts
+
+        /// <summary>
+        /// Registers the interrupt callback on the pin. Pin mode has to be set to Input.
+        /// </summary>
+        /// <param name="edgeDetection">The edge detection.</param>
+        /// <param name="callback">The callback.</param>
+        /// <exception cref="ArgumentException">callback</exception>
+        /// <exception cref="InvalidOperationException">
+        /// An interrupt callback was already registered.
+        /// or
+        /// RegisterInterruptCallback
+        /// </exception>
+        public void RegisterInterruptCallback(EdgeDetection edgeDetection, InterruptServiceRoutineCallback callback)
+        {
+            if (callback == null)
+                throw new ArgumentException($"{nameof(callback)} cannot be null");
+
+            if (InterruptCallback != null)
+                throw new InvalidOperationException("An interrupt callback was already registered.");
+
+            if (PinMode != GpioPinDriveMode.Input)
+            {
+                throw new InvalidOperationException(
+                    $"Unable to {nameof(RegisterInterruptCallback)} for pin {PinNumber} because operating mode is {PinMode}."
+                    + $" Calling {nameof(RegisterInterruptCallback)} is only allowed if {nameof(PinMode)} is set to {GpioPinDriveMode.Input}");
+            }
+
+            lock (_syncLock)
+            {
+                var registerResult = WiringPi.WiringPiISR(PinNumber, (int)edgeDetection, callback);
+                if (registerResult == 0)
+                {
+                    InterruptEdgeDetection = edgeDetection;
+                    InterruptCallback = callback;
+                }
+                else
+                {
+                    HardwareException.Throw(nameof(GpioPin), nameof(RegisterInterruptCallback));
+                }
+            }
+        }
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Gpio/I2CBus.cs

@@ -0,0 +1,93 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using Native;
+    using Swan.Abstractions;
+    using System.Collections.Generic;
+    using System.Collections.ObjectModel;
+    using System.Linq;
+
+    /// <summary>
+    /// A simple wrapper for the I2c bus on the Raspberry Pi
+    /// </summary>
+    public class I2CBus : SingletonBase<I2CBus>
+    {
+        // TODO: It would be nice to integrate i2c device detection.
+        private static readonly object SyncRoot = new object();
+        private readonly Dictionary<int, I2CDevice> _devices = new Dictionary<int, I2CDevice>();
+
+        /// <summary>
+        /// Prevents a default instance of the <see cref="I2CBus"/> class from being created.
+        /// </summary>
+        private I2CBus()
+        {
+            // placeholder
+        }
+
+        /// <summary>
+        /// Gets the registered devices as a read only collection.
+        /// </summary>
+        public ReadOnlyCollection<I2CDevice> Devices => new ReadOnlyCollection<I2CDevice>(_devices.Values.ToArray());
+
+        /// <summary>
+        /// Gets the <see cref="I2CDevice"/> with the specified device identifier.
+        /// </summary>
+        /// <value>
+        /// The <see cref="I2CDevice"/>.
+        /// </value>
+        /// <param name="deviceId">The device identifier.</param>
+        /// <returns>A reference to an I2C device</returns>
+        public I2CDevice this[int deviceId] => GetDeviceById(deviceId);
+
+        /// <summary>
+        /// Gets the device by identifier.
+        /// </summary>
+        /// <param name="deviceId">The device identifier.</param>
+        /// <returns>The device reference</returns>
+        public I2CDevice GetDeviceById(int deviceId)
+        {
+            lock (SyncRoot)
+            {
+                return _devices[deviceId];
+            }
+        }
+
+        /// <summary>
+        /// Adds a device to the bus by its Id. If the device is already registered it simply returns the existing device.
+        /// </summary>
+        /// <param name="deviceId">The device identifier.</param>
+        /// <returns>The device reference</returns>
+        /// <exception cref="KeyNotFoundException">When the device file descriptor is not found</exception>
+        public I2CDevice AddDevice(int deviceId)
+        {
+            lock (SyncRoot)
+            {
+                if (_devices.ContainsKey(deviceId))
+                    return _devices[deviceId];
+
+                var fileDescriptor = SetupFileDescriptor(deviceId);
+                if (fileDescriptor < 0)
+                    throw new KeyNotFoundException($"Device with id {deviceId} could not be registered with the I2C bus. Error Code: {fileDescriptor}.");
+
+                var device = new I2CDevice(deviceId, fileDescriptor);
+                _devices[deviceId] = device;
+                return device;
+            }
+        }
+
+        /// <summary>
+        /// This initializes the I2C system with your given device identifier.
+        /// The ID is the I2C number of the device and you can use the i2cdetect program to find this out.
+        /// wiringPiI2CSetup() will work out which revision Raspberry Pi you have and open the appropriate device in /dev.
+        /// The return value is the standard Linux filehandle, or -1 if any error – in which case, you can consult errno as usual.
+        /// </summary>
+        /// <param name="deviceId">The device identifier.</param>
+        /// <returns>The Linux file handle</returns>
+        private static int SetupFileDescriptor(int deviceId)
+        {
+            lock (SyncRoot)
+            {
+                return WiringPi.WiringPiI2CSetup(deviceId);
+            }
+        }
+    }
+}

Unosquare.RaspberryIO/Gpio/I2CDevice.cs

@@ -0,0 +1,195 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using System;
+    using System.Threading.Tasks;
+    using Native;
+
+    /// <summary>
+    /// Represents a device on the I2C Bus
+    /// </summary>
+    public class I2CDevice
+    {
+        private readonly object _syncLock = new object();
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="I2CDevice"/> class.
+        /// </summary>
+        /// <param name="deviceId">The device identifier.</param>
+        /// <param name="fileDescriptor">The file descriptor.</param>
+        internal I2CDevice(int deviceId, int fileDescriptor)
+        {
+            DeviceId = deviceId;
+            FileDescriptor = fileDescriptor;
+        }
+
+        /// <summary>
+        /// Gets the device identifier.
+        /// </summary>
+        /// <value>
+        /// The device identifier.
+        /// </value>
+        public int DeviceId { get; }
+
+        /// <summary>
+        /// Gets the standard POSIX file descriptor.
+        /// </summary>
+        /// <value>
+        /// The file descriptor.
+        /// </value>
+        public int FileDescriptor { get; }
+
+        /// <summary>
+        /// Reads a byte from the specified file descriptor
+        /// </summary>
+        /// <returns>The byte from device</returns>
+        public byte Read()
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CRead(FileDescriptor);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(Read));
+                return (byte)result;
+            }
+        }
+
+        /// <summary>
+        /// Reads a byte from the specified file descriptor
+        /// </summary>
+        /// <returns>The byte from device</returns>
+        public Task<byte> ReadAsync() => Task.Run(() => Read());
+
+        /// <summary>
+        /// Reads a buffer of the specified length, one byte at a time
+        /// </summary>
+        /// <param name="length">The length.</param>
+        /// <returns>The byte array from device</returns>
+        public byte[] Read(int length)
+        {
+            lock (_syncLock)
+            {
+                var buffer = new byte[length];
+                for (var i = 0; i < length; i++)
+                {
+                    var result = WiringPi.WiringPiI2CRead(FileDescriptor);
+                    if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(Read));
+                    buffer[i] = (byte)result;
+                }
+
+                return buffer;
+            }
+        }
+
+        /// <summary>
+        /// Reads a buffer of the specified length, one byte at a time
+        /// </summary>
+        /// <param name="length">The length.</param>
+        /// <returns>The byte array from device</returns>
+        public Task<byte[]> ReadAsync(int length) => Task.Run(() => Read(length));
+
+        /// <summary>
+        /// Writes a byte of data the specified file descriptor.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        public void Write(byte data)
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CWrite(FileDescriptor, data);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(Write));
+            }
+        }
+
+        /// <summary>
+        /// Writes a byte of data the specified file descriptor.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteAsync(byte data) => Task.Run(() => { Write(data); });
+
+        /// <summary>
+        /// Writes a set of bytes to the specified file descriptor.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        public void Write(byte[] data)
+        {
+            lock (_syncLock)
+            {
+                foreach (var b in data)
+                {
+                    var result = WiringPi.WiringPiI2CWrite(FileDescriptor, b);
+                    if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(Write));
+                }
+            }
+        }
+
+        /// <summary>
+        /// Writes a set of bytes to the specified file descriptor.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteAsync(byte[] data)
+        {
+            return Task.Run(() => { Write(data); });
+        }
+
+        /// <summary>
+        /// These write an 8 or 16-bit data value into the device register indicated.
+        /// </summary>
+        /// <param name="address">The register.</param>
+        /// <param name="data">The data.</param>
+        public void WriteAddressByte(int address, byte data)
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CWriteReg8(FileDescriptor, address, data);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(WriteAddressByte));
+            }
+        }
+
+        /// <summary>
+        /// These write an 8 or 16-bit data value into the device register indicated.
+        /// </summary>
+        /// <param name="address">The register.</param>
+        /// <param name="data">The data.</param>
+        public void WriteAddressWord(int address, ushort data)
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CWriteReg16(FileDescriptor, address, data);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(WriteAddressWord));
+            }
+        }
+
+        /// <summary>
+        /// These read an 8 or 16-bit value from the device register indicated.
+        /// </summary>
+        /// <param name="address">The register.</param>
+        /// <returns>The address byte from device</returns>
+        public byte ReadAddressByte(int address)
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CReadReg8(FileDescriptor, address);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(ReadAddressByte));
+
+                return (byte)result;
+            }
+        }
+
+        /// <summary>
+        /// These read an 8 or 16-bit value from the device register indicated.
+        /// </summary>
+        /// <param name="address">The register.</param>
+        /// <returns>The address word from device</returns>
+        public ushort ReadAddressWord(int address)
+        {
+            lock (_syncLock)
+            {
+                var result = WiringPi.WiringPiI2CReadReg16(FileDescriptor, address);
+                if (result < 0) HardwareException.Throw(nameof(I2CDevice), nameof(ReadAddressWord));
+
+                return Convert.ToUInt16(result);
+            }
+        }
+    }
+}

Unosquare.RaspberryIO/Gpio/SpiBus.cs

@@ -0,0 +1,72 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using Swan.Abstractions;
+
+    /// <summary>
+    /// The SPI Bus containing the 2 SPI channels
+    /// </summary>
+    public class SpiBus : SingletonBase<SpiBus>
+    {
+        /// <summary>
+        /// Prevents a default instance of the <see cref="SpiBus"/> class from being created.
+        /// </summary>
+        private SpiBus()
+        {
+            // placeholder
+        }
+
+        #region SPI Access
+
+        /// <summary>
+        /// Gets or sets the channel 0 frequency in Hz.
+        /// </summary>
+        /// <value>
+        /// The channel0 frequency.
+        /// </value>
+        public int Channel0Frequency { get; set; }
+
+        /// <summary>
+        /// Gets the SPI bus on channel 1.
+        /// </summary>
+        /// <value>
+        /// The channel0.
+        /// </value>
+        public SpiChannel Channel0
+        {
+            get
+            {
+                if (Channel0Frequency == 0)
+                    Channel0Frequency = SpiChannel.DefaultFrequency;
+
+                return SpiChannel.Retrieve(SpiChannelNumber.Channel0, Channel0Frequency);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the channel 1 frequency in Hz
+        /// </summary>
+        /// <value>
+        /// The channel1 frequency.
+        /// </value>
+        public int Channel1Frequency { get; set; }
+
+        /// <summary>
+        /// Gets the SPI bus on channel 1.
+        /// </summary>
+        /// <value>
+        /// The channel1.
+        /// </value>
+        public SpiChannel Channel1
+        {
+            get
+            {
+                if (Channel1Frequency == 0)
+                    Channel1Frequency = SpiChannel.DefaultFrequency;
+
+                return SpiChannel.Retrieve(SpiChannelNumber.Channel1, Channel1Frequency);
+            }
+        }
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Gpio/SpiChannel.cs

@@ -0,0 +1,154 @@
+namespace Unosquare.RaspberryIO.Gpio
+{
+    using Native;
+    using Swan;
+    using System;
+    using System.Collections.Generic;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// Provides access to using the SPI buses on the GPIO.
+    /// SPI is a bus that works like a ring shift register
+    /// The number of bytes pushed is equal to the number of bytes received.
+    /// </summary>
+    public sealed class SpiChannel
+    {
+        /// <summary>
+        /// The minimum frequency of an SPI Channel
+        /// </summary>
+        public const int MinFrequency = 500000;
+
+        /// <summary>
+        /// The maximum frequency of an SPI channel
+        /// </summary>
+        public const int MaxFrequency = 32000000;
+
+        /// <summary>
+        /// The default frequency of SPI channels
+        /// This is set to 8 Mhz wich is typical in modern hardware.
+        /// </summary>
+        public const int DefaultFrequency = 8000000;
+
+        private static readonly object SyncRoot = new object();
+        private static readonly Dictionary<SpiChannelNumber, SpiChannel> Buses = new Dictionary<SpiChannelNumber, SpiChannel>();
+        private readonly object _syncLock = new object();
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SpiChannel"/> class.
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <param name="frequency">The frequency.</param>
+        private SpiChannel(SpiChannelNumber channel, int frequency)
+        {
+            lock (SyncRoot)
+            {
+                Frequency = frequency.Clamp(MinFrequency, MaxFrequency);
+                Channel = (int)channel;
+                FileDescriptor = WiringPi.WiringPiSPISetup((int)channel, Frequency);
+
+                if (FileDescriptor < 0)
+                {
+                    HardwareException.Throw(nameof(SpiChannel), channel.ToString());
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the standard initialization file descriptor.
+        /// anything negative means error.
+        /// </summary>
+        /// <value>
+        /// The file descriptor.
+        /// </value>
+        public int FileDescriptor { get; }
+
+        /// <summary>
+        /// Gets the channel.
+        /// </summary>
+        public int Channel { get; }
+
+        /// <summary>
+        /// Gets the frequency.
+        /// </summary>
+        public int Frequency { get; }
+
+        /// <summary>
+        /// Sends data and simultaneously receives the data in the return buffer
+        /// </summary>
+        /// <param name="buffer">The buffer.</param>
+        /// <returns>The read bytes from the ring-style bus</returns>
+        public byte[] SendReceive(byte[] buffer)
+        {
+            if (buffer == null || buffer.Length == 0)
+                return null;
+
+            lock (_syncLock)
+            {
+                var spiBuffer = new byte[buffer.Length];
+                Array.Copy(buffer, spiBuffer, buffer.Length);
+
+                var result = WiringPi.WiringPiSPIDataRW(Channel, spiBuffer, spiBuffer.Length);
+                if (result < 0) HardwareException.Throw(nameof(SpiChannel), nameof(SendReceive));
+
+                return spiBuffer;
+            }
+        }
+
+        /// <summary>
+        /// Sends data and simultaneously receives the data in the return buffer
+        /// </summary>
+        /// <param name="buffer">The buffer.</param>
+        /// <returns>
+        /// The read bytes from the ring-style bus
+        /// </returns>
+        public Task<byte[]> SendReceiveAsync(byte[] buffer) => Task.Run(() => SendReceive(buffer));
+
+        /// <summary>
+        /// Writes the specified buffer the the underlying FileDescriptor.
+        /// Do not use this method if you expect data back.
+        /// This method is efficient if used in a fire-and-forget scenario
+        /// like sending data over to those long RGB LED strips
+        /// </summary>
+        /// <param name="buffer">The buffer.</param>
+        public void Write(byte[] buffer)
+        {
+            lock (_syncLock)
+            {
+                var result = Standard.Write(FileDescriptor, buffer, buffer.Length);
+
+                if (result < 0)
+                    HardwareException.Throw(nameof(SpiChannel), nameof(Write));
+            }
+        }
+
+        /// <summary>
+        /// Writes the specified buffer the the underlying FileDescriptor.
+        /// Do not use this method if you expect data back.
+        /// This method is efficient if used in a fire-and-forget scenario
+        /// like sending data over to those long RGB LED strips
+        /// </summary>
+        /// <param name="buffer">The buffer.</param>
+        /// <returns>The awaitable task</returns>
+        public Task WriteAsync(byte[] buffer) => Task.Run(() => { Write(buffer); });
+
+        /// <summary>
+        /// Retrieves the spi bus. If the bus channel is not registered it sets it up automatically.
+        /// If it had been previously registered, then the bus is simply returned.
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <param name="frequency">The frequency.</param>
+        /// <returns>The usable SPI channel</returns>
+        internal static SpiChannel Retrieve(SpiChannelNumber channel, int frequency)
+        {
+            lock (SyncRoot)
+            {
+                if (Buses.ContainsKey(channel))
+                    return Buses[channel];
+
+                var newBus = new SpiChannel(channel, frequency);
+                Buses[channel] = newBus;
+                return newBus;
+            }
+        }
+    }
+}

Unosquare.RaspberryIO/Native/Delegates.cs

@@ -0,0 +1,12 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    /// <summary>
+    /// A delegate defining a callback for an Interrupt Service Routine
+    /// </summary>
+    public delegate void InterruptServiceRoutineCallback();
+
+    /// <summary>
+    /// Defines the body of a thread worker
+    /// </summary>
+    public delegate void ThreadWorker();
+}

Unosquare.RaspberryIO/Native/HardwareException.cs

@@ -0,0 +1,73 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using Swan;
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// Represents a low-level exception, typically thrown when return codes from a
+    /// low-level operation is non-zero or in some cases when it is less than zero.
+    /// </summary>
+    /// <seealso cref="Exception" />
+    public class HardwareException : Exception
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HardwareException" /> class.
+        /// </summary>
+        /// <param name="errorCode">The error code.</param>
+        /// <param name="component">The component.</param>
+        public HardwareException(int errorCode, string component)
+            : base($"A hardware exception occurred. Error Code: {errorCode}")
+        {
+            ExtendedMessage = null;
+
+            try
+            {
+                ExtendedMessage = Standard.Strerror(errorCode);
+            }
+            catch
+            {
+                // TODO: strerror not working great...
+                $"Could not retrieve native error description using {nameof(Standard.Strerror)}".Error(Pi.LoggerSource);
+            }
+
+            ErrorCode = errorCode;
+            Component = component;
+        }
+
+        /// <summary>
+        /// Gets the error code.
+        /// </summary>
+        /// <value>
+        /// The error code.
+        /// </value>
+        public int ErrorCode { get; }
+
+        /// <summary>
+        /// Gets the component.
+        /// </summary>
+        /// <value>
+        /// The component.
+        /// </value>
+        public string Component { get; }
+
+        /// <summary>
+        /// Gets the extended message (could be null).
+        /// </summary>
+        /// <value>
+        /// The extended message.
+        /// </value>
+        public string ExtendedMessage { get; }
+
+        /// <summary>
+        /// Throws a new instance of a hardware error by retrieving the last error number (errno).
+        /// </summary>
+        /// <param name="className">Name of the class.</param>
+        /// <param name="methodName">Name of the method.</param>
+        /// <exception cref="HardwareException">When an error thrown by an API call occurs</exception>
+        public static void Throw(string className, string methodName) => throw new HardwareException(Marshal.GetLastWin32Error(), $"{className}.{methodName}");
+
+        /// <inheritdoc />
+        public override string ToString() => $"{GetType()}{(string.IsNullOrWhiteSpace(Component) ? string.Empty : $" on {Component}")}: ({ErrorCode}) - {Message}";
+    }
+}

Unosquare.RaspberryIO/Native/HighResolutionTimer.cs

@@ -0,0 +1,32 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System;
+    using System.Diagnostics;
+
+    /// <summary>
+    /// Provides access to a high- esolution, time measuring device.
+    /// </summary>
+    /// <seealso cref="Stopwatch" />
+    public class HighResolutionTimer : Stopwatch
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HighResolutionTimer"/> class.
+        /// </summary>
+        /// <exception cref="NotSupportedException">High-resolution timer not available</exception>
+        public HighResolutionTimer()
+        {
+            if (!IsHighResolution)
+                throw new NotSupportedException("High-resolution timer not available");
+        }
+
+        /// <summary>
+        /// Gets the numer of microseconds per timer tick.
+        /// </summary>
+        public static double MicrosecondsPerTick { get; } = 1000000d / Frequency;
+
+        /// <summary>
+        /// Gets the elapsed microseconds.
+        /// </summary>
+        public long ElapsedMicroseconds => (long)(ElapsedTicks * MicrosecondsPerTick);
+    }
+}

Unosquare.RaspberryIO/Native/Standard.cs

@@ -0,0 +1,84 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using Swan;
+    using System;
+    using System.Runtime.InteropServices;
+    using System.Text;
+
+    /// <summary>
+    /// Provides standard libc calls using platform-invoke
+    /// </summary>
+    internal static class Standard
+    {
+        internal const string LibCLibrary = "libc";
+
+        #region LibC Calls
+
+        /// <summary>
+        /// Strerrors the specified error.
+        /// </summary>
+        /// <param name="error">The error.</param>
+        /// <returns></returns>
+        public static string Strerror(int error)
+        {
+            if (!Runtime.IsUsingMonoRuntime) return StrError(error);
+
+            try
+            {
+                var buffer = new StringBuilder(256);
+                var result = Strerror(error, buffer, (ulong)buffer.Capacity);
+                return (result != -1) ? buffer.ToString() : null;
+            }
+            catch (EntryPointNotFoundException)
+            {
+                return null;
+            }
+        }
+        
+        /// <summary>
+        /// Changes file permissions on a Unix file system
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <param name="mode">The mode.</param>
+        /// <returns>The result</returns>
+        [DllImport(LibCLibrary, EntryPoint = "chmod", SetLastError = true)]
+        public static extern int Chmod(string filename, uint mode);
+
+        /// <summary>
+        /// Converts a string to a 32 bit integer. Use endpointer as IntPtr.Zero
+        /// </summary>
+        /// <param name="numberString">The number string.</param>
+        /// <param name="endPointer">The end pointer.</param>
+        /// <param name="numberBase">The number base.</param>
+        /// <returns>The result</returns>
+        [DllImport(LibCLibrary, EntryPoint = "strtol", SetLastError = true)]
+        public static extern int StringToInteger(string numberString, IntPtr endPointer, int numberBase);
+
+        /// <summary>
+        /// The write() function attempts to write nbytes from buffer to the file associated with handle. On text files, it expands each LF to a CR/LF.
+        /// The function returns the number of bytes written to the file. A return value of -1 indicates an error, with errno set appropriately.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="buffer">The buffer.</param>
+        /// <param name="count">The count.</param>
+        /// <returns>The result</returns>
+        [DllImport(LibCLibrary, EntryPoint = "write", SetLastError = true)]
+        public static extern int Write(int fd, byte[] buffer, int count);
+
+        /// <summary>
+        /// Fills in the structure with information about the system.
+        /// </summary>
+        /// <param name="name">The name.</param>
+        /// <returns>The result</returns>
+        [DllImport(LibCLibrary, EntryPoint = "uname", SetLastError = true)]
+        public static extern int Uname(out SystemName name);
+        
+        [DllImport(LibCLibrary, EntryPoint = "strerror", SetLastError = true)]
+        private static extern string StrError(int errnum);
+
+        [DllImport("MonoPosixHelper", EntryPoint = "Mono_Posix_Syscall_strerror_r", SetLastError = true)]
+        private static extern int Strerror(int error, [Out] StringBuilder buffer, ulong length);
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Native/SystemName.cs

@@ -0,0 +1,47 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// OS uname structure
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+    internal struct SystemName
+    {
+        /// <summary>
+        /// System name
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string SysName;
+
+        /// <summary>
+        /// Node name
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string NodeName;
+
+        /// <summary>
+        /// Release level
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string Release;
+
+        /// <summary>
+        /// Version level
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string Version;
+
+        /// <summary>
+        /// Hardware level
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string Machine;
+
+        /// <summary>
+        /// Domain name
+        /// </summary>
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 65)]
+        public string DomainName;
+    }
+}

Unosquare.RaspberryIO/Native/ThreadLockKey.cs

@@ -0,0 +1,28 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    /// <summary>
+    /// Defines the different threading locking keys
+    /// </summary>
+    public enum ThreadLockKey
+    {
+        /// <summary>
+        /// The lock 0
+        /// </summary>
+        Lock0 = 0,
+        
+        /// <summary>
+        /// The lock 1
+        /// </summary>
+        Lock1 = 1,
+        
+        /// <summary>
+        /// The lock 2
+        /// </summary>
+        Lock2 = 2,
+        
+        /// <summary>
+        /// The lock 3
+        /// </summary>
+        Lock3 = 3,
+    }
+}

Unosquare.RaspberryIO/Native/Timing.cs

@@ -0,0 +1,108 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using Swan;
+    using Swan.Abstractions;
+    using System;
+
+    /// <summary>
+    /// Provides access to timing and threading properties and methods
+    /// </summary>
+    public class Timing : SingletonBase<Timing>
+    {
+        /// <summary>
+        /// Prevents a default instance of the <see cref="Timing"/> class from being created.
+        /// </summary>
+        /// <exception cref="NotSupportedException">Could not initialize the GPIO controller</exception>
+        private Timing()
+        {
+            // placeholder
+        }
+
+        /// <summary>
+        /// This returns a number representing the number of milliseconds since your program
+        /// initialized the GPIO controller.
+        /// It returns an unsigned 32-bit number which wraps after 49 days.
+        /// </summary>
+        /// <value>
+        /// The milliseconds since setup.
+        /// </value>
+        public uint MillisecondsSinceSetup => WiringPi.Millis();
+
+        /// <summary>
+        /// This returns a number representing the number of microseconds since your
+        /// program initialized the GPIO controller
+        /// It returns an unsigned 32-bit number which wraps after approximately 71 minutes.
+        /// </summary>
+        /// <value>
+        /// The microseconds since setup.
+        /// </value>
+        public uint MicrosecondsSinceSetup => WiringPi.Micros();
+
+        /// <summary>
+        /// This causes program execution to pause for at least howLong milliseconds.
+        /// Due to the multi-tasking nature of Linux it could be longer.
+        /// Note that the maximum delay is an unsigned 32-bit integer or approximately 49 days.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        public static void SleepMilliseconds(uint value) => WiringPi.Delay(value);
+
+        /// <summary>
+        /// This causes program execution to pause for at least howLong microseconds.
+        /// Due to the multi-tasking nature of Linux it could be longer.
+        /// Note that the maximum delay is an unsigned 32-bit integer microseconds or approximately 71 minutes.
+        /// Delays under 100 microseconds are timed using a hard-coded loop continually polling the system time,
+        /// Delays over 100 microseconds are done using the system nanosleep() function –
+        /// You may need to consider the implications of very short delays on the overall performance of the system,
+        /// especially if using threads.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        public void SleepMicroseconds(uint value) => WiringPi.DelayMicroseconds(value);
+
+        /// <summary>
+        /// This attempts to shift your program (or thread in a multi-threaded program) to a higher priority and
+        /// enables a real-time scheduling. The priority parameter should be from 0 (the default) to 99 (the maximum).
+        /// This won’t make your program go any faster, but it will give it a bigger slice of time when other programs
+        /// are running. The priority parameter works relative to others – so you can make one program priority 1 and
+        /// another priority 2 and it will have the same effect as setting one to 10 and the other to 90
+        /// (as long as no other programs are running with elevated priorities)
+        /// </summary>
+        /// <param name="priority">The priority.</param>
+        public void SetThreadPriority(int priority)
+        {
+            priority = priority.Clamp(0, 99);
+            var result = WiringPi.PiHiPri(priority);
+            if (result < 0) HardwareException.Throw(nameof(Timing), nameof(SetThreadPriority));
+        }
+
+        /// <summary>
+        /// This is really nothing more than a simplified interface to the Posix threads mechanism that Linux supports.
+        /// See the manual pages on Posix threads (man pthread) if you need more control over them.
+        /// </summary>
+        /// <param name="worker">The worker.</param>
+        /// <exception cref="ArgumentNullException">worker</exception>
+        public void CreateThread(ThreadWorker worker)
+        {
+            if (worker == null)
+                throw new ArgumentNullException(nameof(worker));
+
+            var result = WiringPi.PiThreadCreate(worker);
+            if (result != 0) HardwareException.Throw(nameof(Timing), nameof(CreateThread));
+        }
+
+        /// <summary>
+        /// These allow you to synchronize variable updates from your main program to any threads running in your program.
+        /// keyNum is a number from 0 to 3 and represents a “key”. When another process tries to lock the same key,
+        /// it will be stalled until the first process has unlocked the same key.
+        /// </summary>
+        /// <param name="key">The key.</param>
+        public void Lock(ThreadLockKey key) => WiringPi.PiLock((int)key);
+
+        /// <summary>
+        /// These allow you to synchronize variable updates from your main program to any threads running in your program.
+        /// keyNum is a number from 0 to 3 and represents a “key”. When another process tries to lock the same key,
+        /// it will be stalled until the first process has unlocked the same key.
+        /// </summary>
+        /// <param name="key">The key.</param>
+        public void Unlock(ThreadLockKey key) => WiringPi.PiUnlock((int)key);
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.I2C.cs

@@ -0,0 +1,79 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    public partial class WiringPi
+    {
+        #region WiringPi - I2C Library Calls
+
+        /// <summary>
+        /// Simple device read. Some devices present data when you read them without having to do any register transactions.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CRead", SetLastError = true)]
+        public static extern int WiringPiI2CRead(int fd);
+
+        /// <summary>
+        /// These read an 8-bit value from the device register indicated.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="reg">The reg.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CReadReg8", SetLastError = true)]
+        public static extern int WiringPiI2CReadReg8(int fd, int reg);
+
+        /// <summary>
+        /// These read a 16-bit value from the device register indicated.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="reg">The reg.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CReadReg16", SetLastError = true)]
+        public static extern int WiringPiI2CReadReg16(int fd, int reg);
+
+        /// <summary>
+        /// Simple device write. Some devices accept data this way without needing to access any internal registers.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="data">The data.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CWrite", SetLastError = true)]
+        public static extern int WiringPiI2CWrite(int fd, int data);
+
+        /// <summary>
+        /// These write an 8-bit data value into the device register indicated.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="reg">The reg.</param>
+        /// <param name="data">The data.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CWriteReg8", SetLastError = true)]
+        public static extern int WiringPiI2CWriteReg8(int fd, int reg, int data);
+
+        /// <summary>
+        /// These write a 16-bit data value into the device register indicated.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="reg">The reg.</param>
+        /// <param name="data">The data.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CWriteReg16", SetLastError = true)]
+        public static extern int WiringPiI2CWriteReg16(int fd, int reg, int data);
+
+        /// <summary>
+        /// This initialises the I2C system with your given device identifier.
+        /// The ID is the I2C number of the device and you can use the i2cdetect program to find this out. wiringPiI2CSetup()
+        /// will work out which revision Raspberry Pi you have and open the appropriate device in /dev.
+        /// The return value is the standard Linux filehandle, or -1 if any error – in which case, you can consult errno as usual.
+        /// E.g. the popular MCP23017 GPIO expander is usually device Id 0x20, so this is the number you would pass into wiringPiI2CSetup().
+        /// </summary>
+        /// <param name="devId">The dev identifier.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiI2CSetup", SetLastError = true)]
+        public static extern int WiringPiI2CSetup(int devId);
+
+        #endregion
+
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.SerialPort.cs

@@ -0,0 +1,73 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    public partial class WiringPi
+    {
+        #region WiringPi - Serial Port
+
+        /// <summary>
+        /// This opens and initialises the serial device and sets the baud rate. It sets the port into “raw” mode (character at a time and no translations),
+        /// and sets the read timeout to 10 seconds. The return value is the file descriptor or -1 for any error, in which case errno will be set as appropriate.
+        /// The wiringSerial library is intended to provide simplified control – suitable for most applications, however if you need advanced control
+        /// – e.g. parity control, modem control lines (via a USB adapter, there are none on the Pi’s on-board UART!) and so on,
+        /// then you need to do some of this the old fashioned way.
+        /// </summary>
+        /// <param name="device">The device.</param>
+        /// <param name="baud">The baud.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialOpen", SetLastError = true)]
+        public static extern int SerialOpen(string device, int baud);
+
+        /// <summary>
+        /// Closes the device identified by the file descriptor given.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialClose", SetLastError = true)]
+        public static extern int SerialClose(int fd);
+
+        /// <summary>
+        /// Sends the single byte to the serial device identified by the given file descriptor.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="c">The c.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialPutchar", SetLastError = true)]
+        public static extern void SerialPutchar(int fd, byte c);
+
+        /// <summary>
+        /// Sends the nul-terminated string to the serial device identified by the given file descriptor.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <param name="s">The s.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialPuts", SetLastError = true)]
+        public static extern void SerialPuts(int fd, string s);
+
+        /// <summary>
+        /// Returns the number of characters available for reading, or -1 for any error condition,
+        /// in which case errno will be set appropriately.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialDataAvail", SetLastError = true)]
+        public static extern int SerialDataAvail(int fd);
+
+        /// <summary>
+        /// Returns the next character available on the serial device.
+        /// This call will block for up to 10 seconds if no data is available (when it will return -1)
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialGetchar", SetLastError = true)]
+        public static extern int SerialGetchar(int fd);
+
+        /// <summary>
+        /// This discards all data received, or waiting to be send down the given device.
+        /// </summary>
+        /// <param name="fd">The fd.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "serialFlush", SetLastError = true)]
+        public static extern void SerialFlush(int fd);
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.Shift.cs

@@ -0,0 +1,36 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    public partial class WiringPi
+    {
+        #region WiringPi - Shift Library
+
+        /// <summary>
+        /// This shifts an 8-bit data value in with the data appearing on the dPin and the clock being sent out on the cPin.
+        /// Order is either LSBFIRST or MSBFIRST. The data is sampled after the cPin goes high.
+        /// (So cPin high, sample data, cPin low, repeat for 8 bits) The 8-bit value is returned by the function.
+        /// </summary>
+        /// <param name="dPin">The d pin.</param>
+        /// <param name="cPin">The c pin.</param>
+        /// <param name="order">The order.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "shiftIn", SetLastError = true)]
+        public static extern byte ShiftIn(byte dPin, byte cPin, byte order);
+
+        /// <summary>
+        /// The shifts an 8-bit data value val out with the data being sent out on dPin and the clock being sent out on the cPin.
+        /// order is as above. Data is clocked out on the rising or falling edge – ie. dPin is set, then cPin is taken high then low
+        /// – repeated for the 8 bits.
+        /// </summary>
+        /// <param name="dPin">The d pin.</param>
+        /// <param name="cPin">The c pin.</param>
+        /// <param name="order">The order.</param>
+        /// <param name="val">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "shiftOut", SetLastError = true)]
+        public static extern void ShiftOut(byte dPin, byte cPin, byte order, byte val);
+
+        #endregion
+
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.SoftPwm.cs

@@ -0,0 +1,64 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    public partial class WiringPi
+    {
+        #region WiringPi - Soft PWM (https://github.com/WiringPi/WiringPi/blob/master/wiringPi/softPwm.h)
+
+        /// <summary>
+        /// This creates a software controlled PWM pin. You can use any GPIO pin and the pin numbering will be that of the wiringPiSetup()
+        /// function you used. Use 100 for the pwmRange, then the value can be anything from 0 (off) to 100 (fully on) for the given pin.
+        /// The return value is 0 for success. Anything else and you should check the global errno variable to see what went wrong.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="initialValue">The initial value.</param>
+        /// <param name="pwmRange">The PWM range.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "softPwmCreate", SetLastError = true)]
+        public static extern int SoftPwmCreate(int pin, int initialValue, int pwmRange);
+
+        /// <summary>
+        /// This updates the PWM value on the given pin. The value is checked to be in-range and pins that haven’t previously
+        /// been initialized via softPwmCreate will be silently ignored.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "softPwmWrite", SetLastError = true)]
+        public static extern void SoftPwmWrite(int pin, int value);
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "softPwmStop", SetLastError = true)]
+        public static extern void SoftPwmStop(int pin);
+
+        /// <summary>
+        /// This creates a software controlled tone pin. You can use any GPIO pin and the pin numbering will be that of the wiringPiSetup() function you used.
+        /// The return value is 0 for success. Anything else and you should check the global errno variable to see what went wrong.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "softToneCreate", SetLastError = true)]
+        public static extern int SoftToneCreate(int pin);
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "softToneStop", SetLastError = true)]
+        public static extern void SoftToneStop(int pin);
+
+        /// <summary>
+        /// This updates the tone frequency value on the given pin. The tone will be played until you set the frequency to 0.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="freq">The freq.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "softToneWrite", SetLastError = true)]
+        public static extern void SoftToneWrite(int pin, int freq);
+
+        #endregion
+
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.Spi.cs

@@ -0,0 +1,53 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System.Runtime.InteropServices;
+
+    public partial class WiringPi
+    {
+        #region WiringPi - SPI Library Calls
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <returns>Unknown</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSPIGetFd", SetLastError = true)]
+        public static extern int WiringPiSPIGetFd(int channel);
+
+        /// <summary>
+        /// This performs a simultaneous write/read transaction over the selected SPI bus. Data that was in your buffer is overwritten by data returned from the SPI bus.
+        /// That’s all there is in the helper library. It is possible to do simple read and writes over the SPI bus using the standard read() and write() system calls though –
+        /// write() may be better to use for sending data to chains of shift registers, or those LED strings where you send RGB triplets of data.
+        /// Devices such as A/D and D/A converters usually need to perform a concurrent write/read transaction to work.
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <param name="data">The data.</param>
+        /// <param name="len">The length.</param>
+        /// <returns>The result</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSPIDataRW", SetLastError = true)]
+        public static extern int WiringPiSPIDataRW(int channel, byte[] data, int len);
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <param name="speed">The speed.</param>
+        /// <param name="mode">The mode.</param>
+        /// <returns>Unkown</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSPISetupMode", SetLastError = true)]
+        public static extern int WiringPiSPISetupMode(int channel, int speed, int mode);
+
+        /// <summary>
+        /// This is the way to initialize a channel (The Pi has 2 channels; 0 and 1). The speed parameter is an integer
+        /// in the range 500,000 through 32,000,000 and represents the SPI clock speed in Hz.
+        /// The returned value is the Linux file-descriptor for the device, or -1 on error. If an error has happened, you may use the standard errno global variable to see why.
+        /// </summary>
+        /// <param name="channel">The channel.</param>
+        /// <param name="speed">The speed.</param>
+        /// <returns>The Linux file descriptor for the device or -1 for error</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSPISetup", SetLastError = true)]
+        public static extern int WiringPiSPISetup(int channel, int speed);
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Native/WiringPi.cs

@@ -0,0 +1,394 @@
+namespace Unosquare.RaspberryIO.Native
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// Provides native C WiringPi Library function call wrappers
+    /// All credit for the native library goes to the author of http://wiringpi.com/
+    /// The wrappers were written based on https://github.com/WiringPi/WiringPi/blob/master/wiringPi/wiringPi.h
+    /// </summary>
+    public partial class WiringPi
+    {
+        internal const string WiringPiLibrary = "libwiringPi.so.2.46";
+
+        #region WiringPi - Core Functions (https://github.com/WiringPi/WiringPi/blob/master/wiringPi/wiringPi.h)
+
+        /// <summary>
+        /// This initialises wiringPi and assumes that the calling program is going to be using the wiringPi pin numbering scheme.
+        /// This is a simplified numbering scheme which provides a mapping from virtual pin numbers 0 through 16 to the real underlying Broadcom GPIO pin numbers.
+        /// See the pins page for a table which maps the wiringPi pin number to the Broadcom GPIO pin number to the physical location on the edge connector.
+        /// This function needs to be called with root privileges.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSetup", SetLastError = true)]
+        public static extern int WiringPiSetup();
+
+        /// <summary>
+        /// This initialises wiringPi but uses the /sys/class/gpio interface rather than accessing the hardware directly.
+        /// This can be called as a non-root user provided the GPIO pins have been exported before-hand using the gpio program.
+        /// Pin numbering in this mode is the native Broadcom GPIO numbers – the same as wiringPiSetupGpio() above,
+        /// so be aware of the differences between Rev 1 and Rev 2 boards.
+        ///
+        /// Note: In this mode you can only use the pins which have been exported via the /sys/class/gpio interface before you run your program.
+        /// You can do this in a separate shell-script, or by using the system() function from inside your program to call the gpio program.
+        /// Also note that some functions have no effect when using this mode as they’re not currently possible to action unless called with root privileges.
+        /// (although you can use system() to call gpio to set/change modes if needed)
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSetupSys", SetLastError = true)]
+        public static extern int WiringPiSetupSys();
+
+        /// <summary>
+        /// This is identical to wiringPiSetup, however it allows the calling programs to use the Broadcom GPIO
+        /// pin numbers directly with no re-mapping.
+        /// As above, this function needs to be called with root privileges, and note that some pins are different
+        /// from revision 1 to revision 2 boards.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSetupGpio", SetLastError = true)]
+        public static extern int WiringPiSetupGpio();
+
+        /// <summary>
+        /// Identical to wiringPiSetup, however it allows the calling programs to use the physical pin numbers on the P1 connector only.
+        /// This function needs to be called with root privileges.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiSetupPhys", SetLastError = true)]
+        public static extern int WiringPiSetupPhys();
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="mode">The mode.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pinModeAlt", SetLastError = true)]
+        public static extern void PinModeAlt(int pin, int mode);
+
+        /// <summary>
+        /// This sets the mode of a pin to either INPUT, OUTPUT, PWM_OUTPUT or GPIO_CLOCK.
+        /// Note that only wiringPi pin 1 (BCM_GPIO 18) supports PWM output and only wiringPi pin 7 (BCM_GPIO 4)
+        /// supports CLOCK output modes.
+        ///
+        /// This function has no effect when in Sys mode. If you need to change the pin mode, then you can
+        /// do it with the gpio program in a script before you start your program.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="mode">The mode.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pinMode", SetLastError = true)]
+        public static extern void PinMode(int pin, int mode);
+
+        /// <summary>
+        /// This sets the pull-up or pull-down resistor mode on the given pin, which should be set as an input.
+        /// Unlike the Arduino, the BCM2835 has both pull-up an down internal resistors. The parameter pud should be; PUD_OFF,
+        /// (no pull up/down), PUD_DOWN (pull to ground) or PUD_UP (pull to 3.3v) The internal pull up/down resistors
+        /// have a value of approximately 50KΩ on the Raspberry Pi.
+        ///
+        /// This function has no effect on the Raspberry Pi’s GPIO pins when in Sys mode.
+        /// If you need to activate a pull-up/pull-down, then you can do it with the gpio program in a script before you start your program.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="pud">The pud.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pullUpDnControl", SetLastError = true)]
+        public static extern void PullUpDnControl(int pin, int pud);
+
+        /// <summary>
+        /// This function returns the value read at the given pin. It will be HIGH or LOW (1 or 0) depending on the logic level at the pin.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalRead", SetLastError = true)]
+        public static extern int DigitalRead(int pin);
+
+        /// <summary>
+        /// Writes the value HIGH or LOW (1 or 0) to the given pin which must have been previously set as an output.
+        /// WiringPi treats any non-zero number as HIGH, however 0 is the only representation of LOW.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalWrite", SetLastError = true)]
+        public static extern void DigitalWrite(int pin, int value);
+
+        /// <summary>
+        /// Writes the value to the PWM register for the given pin. The Raspberry Pi has one
+        /// on-board PWM pin, pin 1 (BMC_GPIO 18, Phys 12) and the range is 0-1024.
+        /// Other PWM devices may have other PWM ranges.
+        /// This function is not able to control the Pi’s on-board PWM when in Sys mode.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pwmWrite", SetLastError = true)]
+        public static extern void PwmWrite(int pin, int value);
+
+        /// <summary>
+        /// This returns the value read on the supplied analog input pin. You will need to
+        /// register additional analog modules to enable this function for devices such as the Gertboard, quick2Wire analog board, etc.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "analogRead", SetLastError = true)]
+        public static extern int AnalogRead(int pin);
+
+        /// <summary>
+        /// This writes the given value to the supplied analog pin. You will need to register additional
+        /// analog modules to enable this function for devices such as the Gertboard.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "analogWrite", SetLastError = true)]
+        public static extern void AnalogWrite(int pin, int value);
+
+        /// <summary>
+        /// This returns the board revision of the Raspberry Pi. It will be either 1 or 2. Some of the BCM_GPIO pins changed number and
+        /// function when moving from board revision 1 to 2, so if you are using BCM_GPIO pin numbers, then you need to be aware of the differences.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "piBoardRev", SetLastError = true)]
+        public static extern int PiBoardRev();
+
+        /// <summary>
+        /// This function is undocumented
+        /// </summary>
+        /// <param name="model">The model.</param>
+        /// <param name="mem">The memory.</param>
+        /// <param name="maker">The maker.</param>
+        /// <param name="overVolted">The over volted.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "piBoardId", SetLastError = true)]
+        public static extern int PiBoardId(ref int model, ref int mem, ref int maker, ref int overVolted);
+
+        /// <summary>
+        /// This returns the BCM_GPIO pin number of the supplied wiringPi pin. It takes the board revision into account.
+        /// </summary>
+        /// <param name="wPiPin">The w pi pin.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wpiPinToGpio", SetLastError = true)]
+        public static extern int WpiPinToGpio(int wPiPin);
+
+        /// <summary>
+        /// This returns the BCM_GPIO pin number of the supplied physical pin on the P1 connector.
+        /// </summary>
+        /// <param name="physPin">The physical pin.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "physPinToGpio", SetLastError = true)]
+        public static extern int PhysPinToGpio(int physPin);
+
+        /// <summary>
+        /// This sets the “strength” of the pad drivers for a particular group of pins.
+        /// There are 3 groups of pins and the drive strength is from 0 to 7. Do not use this unless you know what you are doing.
+        /// </summary>
+        /// <param name="group">The group.</param>
+        /// <param name="value">The value.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "setPadDrive", SetLastError = true)]
+        public static extern int SetPadDrive(int group, int value);
+
+        /// <summary>
+        /// Undocumented function
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "getAlt", SetLastError = true)]
+        public static extern int GetAlt(int pin);
+
+        /// <summary>
+        /// Undocumented function
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="freq">The freq.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "pwmToneWrite", SetLastError = true)]
+        public static extern int PwmToneWrite(int pin, int freq);
+
+        /// <summary>
+        /// This writes the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to set all 8 bits at once to a particular value, although it still takes two write operations to the Pi’s GPIO hardware.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalWriteByte", SetLastError = true)]
+        public static extern void DigitalWriteByte(int value);
+
+        /// <summary>
+        /// This writes the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to set all 8 bits at once to a particular value, although it still takes two write operations to the Pi’s GPIO hardware.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalWriteByte2", SetLastError = true)]
+        public static extern void DigitalWriteByte2(int value);
+
+        /// <summary>
+        /// Undocumented function
+        /// This reads the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to get all 8 bits at once to a particular value.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalReadByte", SetLastError = true)]
+        public static extern uint DigitalReadByte();
+
+        /// <summary>
+        /// Undocumented function
+        /// This reads the 8-bit byte supplied to the first 8 GPIO pins.
+        /// It’s the fastest way to get all 8 bits at once to a particular value.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "digitalReadByte2", SetLastError = true)]
+        public static extern uint DigitalReadByte2();
+
+        /// <summary>
+        /// The PWM generator can run in 2 modes – “balanced” and “mark:space”. The mark:space mode is traditional,
+        /// however the default mode in the Pi is “balanced”. You can switch modes by supplying the parameter: PWM_MODE_BAL or PWM_MODE_MS.
+        /// </summary>
+        /// <param name="mode">The mode.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pwmSetMode", SetLastError = true)]
+        public static extern void PwmSetMode(int mode);
+
+        /// <summary>
+        /// This sets the range register in the PWM generator. The default is 1024.
+        /// </summary>
+        /// <param name="range">The range.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pwmSetRange", SetLastError = true)]
+        public static extern void PwmSetRange(uint range);
+
+        /// <summary>
+        /// This sets the divisor for the PWM clock.
+        /// Note: The PWM control functions can not be used when in Sys mode.
+        /// To understand more about the PWM system, you’ll need to read the Broadcom ARM peripherals manual.
+        /// </summary>
+        /// <param name="divisor">The divisor.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "pwmSetClock", SetLastError = true)]
+        public static extern void PwmSetClock(int divisor);
+
+        /// <summary>
+        /// Undocumented function
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="freq">The freq.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "gpioClockSet", SetLastError = true)]
+        public static extern void GpioClockSet(int pin, int freq);
+
+        /// <summary>
+        /// Note: Jan 2013: The waitForInterrupt() function is deprecated – you should use the newer and easier to use wiringPiISR() function below.
+        /// When called, it will wait for an interrupt event to happen on that pin and your program will be stalled. The timeOut parameter is given in milliseconds,
+        /// or can be -1 which means to wait forever.
+        /// The return value is -1 if an error occurred (and errno will be set appropriately), 0 if it timed out, or 1 on a successful interrupt event.
+        /// Before you call waitForInterrupt, you must first initialise the GPIO pin and at present the only way to do this is to use the gpio program, either
+        /// in a script, or using the system() call from inside your program.
+        /// e.g. We want to wait for a falling-edge interrupt on GPIO pin 0, so to setup the hardware, we need to run: gpio edge 0 falling
+        /// before running the program.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="timeout">The timeout.</param>
+        /// <returns>The result code</returns>
+        [Obsolete]
+        [DllImport(WiringPiLibrary, EntryPoint = "waitForInterrupt", SetLastError = true)]
+        public static extern int WaitForInterrupt(int pin, int timeout);
+
+        /// <summary>
+        /// This function registers a function to received interrupts on the specified pin.
+        /// The edgeType parameter is either INT_EDGE_FALLING, INT_EDGE_RISING, INT_EDGE_BOTH or INT_EDGE_SETUP.
+        /// If it is INT_EDGE_SETUP then no initialisation of the pin will happen – it’s assumed that you have already setup the pin elsewhere
+        /// (e.g. with the gpio program), but if you specify one of the other types, then the pin will be exported and initialised as specified.
+        /// This is accomplished via a suitable call to the gpio utility program, so it need to be available.
+        /// The pin number is supplied in the current mode – native wiringPi, BCM_GPIO, physical or Sys modes.
+        /// This function will work in any mode, and does not need root privileges to work.
+        /// The function will be called when the interrupt triggers. When it is triggered, it’s cleared in the dispatcher before calling your function,
+        /// so if a subsequent interrupt fires before you finish your handler, then it won’t be missed. (However it can only track one more interrupt,
+        /// if more than one interrupt fires while one is being handled then they will be ignored)
+        /// This function is run at a high priority (if the program is run using sudo, or as root) and executes concurrently with the main program.
+        /// It has full access to all the global variables, open file handles and so on.
+        /// </summary>
+        /// <param name="pin">The pin.</param>
+        /// <param name="mode">The mode.</param>
+        /// <param name="method">The method.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "wiringPiISR", SetLastError = true)]
+        public static extern int WiringPiISR(int pin, int mode, InterruptServiceRoutineCallback method);
+
+        /// <summary>
+        /// This function creates a thread which is another function in your program previously declared using the PI_THREAD declaration.
+        /// This function is then run concurrently with your main program. An example may be to have this function wait for an interrupt while
+        /// your program carries on doing other tasks. The thread can indicate an event, or action by using global variables to
+        /// communicate back to the main program, or other threads.
+        /// </summary>
+        /// <param name="method">The method.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "piThreadCreate", SetLastError = true)]
+        public static extern int PiThreadCreate(ThreadWorker method);
+
+        /// <summary>
+        /// These allow you to synchronise variable updates from your main program to any threads running in your program. keyNum is a number from 0 to 3 and represents a key.
+        /// When another process tries to lock the same key, it will be stalled until the first process has unlocked the same key.
+        /// You may need to use these functions to ensure that you get valid data when exchanging data between your main program and a thread
+        /// – otherwise it’s possible that the thread could wake-up halfway during your data copy and change the data –
+        /// so the data you end up copying is incomplete, or invalid. See the wfi.c program in the examples directory for an example.
+        /// </summary>
+        /// <param name="key">The key.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "piLock", SetLastError = true)]
+        public static extern void PiLock(int key);
+
+        /// <summary>
+        /// These allow you to synchronise variable updates from your main program to any threads running in your program. keyNum is a number from 0 to 3 and represents a key.
+        /// When another process tries to lock the same key, it will be stalled until the first process has unlocked the same key.
+        /// You may need to use these functions to ensure that you get valid data when exchanging data between your main program and a thread
+        /// – otherwise it’s possible that the thread could wake-up halfway during your data copy and change the data –
+        /// so the data you end up copying is incomplete, or invalid. See the wfi.c program in the examples directory for an example.
+        /// </summary>
+        /// <param name="key">The key.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "piUnlock", SetLastError = true)]
+        public static extern void PiUnlock(int key);
+
+        /// <summary>
+        /// This attempts to shift your program (or thread in a multi-threaded program) to a higher priority
+        /// and enables a real-time scheduling. The priority parameter should be from 0 (the default) to 99 (the maximum).
+        /// This won’t make your program go any faster, but it will give it a bigger slice of time when other programs are running.
+        /// The priority parameter works relative to others – so you can make one program priority 1 and another priority 2
+        /// and it will have the same effect as setting one to 10 and the other to 90 (as long as no other
+        /// programs are running with elevated priorities)
+        /// The return value is 0 for success and -1 for error. If an error is returned, the program should then consult the errno global variable, as per the usual conventions.
+        /// Note: Only programs running as root can change their priority. If called from a non-root program then nothing happens.
+        /// </summary>
+        /// <param name="priority">The priority.</param>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "piHiPri", SetLastError = true)]
+        public static extern int PiHiPri(int priority);
+
+        /// <summary>
+        /// This causes program execution to pause for at least howLong milliseconds.
+        /// Due to the multi-tasking nature of Linux it could be longer.
+        /// Note that the maximum delay is an unsigned 32-bit integer or approximately 49 days.
+        /// </summary>
+        /// <param name="howLong">The how long.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "delay", SetLastError = true)]
+        public static extern void Delay(uint howLong);
+
+        /// <summary>
+        /// This causes program execution to pause for at least howLong microseconds.
+        /// Due to the multi-tasking nature of Linux it could be longer.
+        /// Note that the maximum delay is an unsigned 32-bit integer microseconds or approximately 71 minutes.
+        /// Delays under 100 microseconds are timed using a hard-coded loop continually polling the system time,
+        /// Delays over 100 microseconds are done using the system nanosleep() function – You may need to consider the implications
+        /// of very short delays on the overall performance of the system, especially if using threads.
+        /// </summary>
+        /// <param name="howLong">The how long.</param>
+        [DllImport(WiringPiLibrary, EntryPoint = "delayMicroseconds", SetLastError = true)]
+        public static extern void DelayMicroseconds(uint howLong);
+
+        /// <summary>
+        /// This returns a number representing the number of milliseconds since your program called one of the wiringPiSetup functions.
+        /// It returns an unsigned 32-bit number which wraps after 49 days.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "millis", SetLastError = true)]
+        public static extern uint Millis();
+
+        /// <summary>
+        /// This returns a number representing the number of microseconds since your program called one of
+        /// the wiringPiSetup functions. It returns an unsigned 32-bit number which wraps after approximately 71 minutes.
+        /// </summary>
+        /// <returns>The result code</returns>
+        [DllImport(WiringPiLibrary, EntryPoint = "micros", SetLastError = true)]
+        public static extern uint Micros();
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Pi.cs

@@ -0,0 +1,110 @@
+namespace Unosquare.RaspberryIO
+{
+    using Camera;
+    using Computer;
+    using Gpio;
+    using Native;
+    using System.Threading.Tasks;
+    using Swan.Components;
+
+    /// <summary>
+    /// Our main character. Provides access to the Raspberry Pi's GPIO, system and board information and Camera
+    /// </summary>
+    public static class Pi
+    {
+        private static readonly object SyncLock = new object();
+
+        /// <summary>
+        /// Initializes static members of the <see cref="Pi" /> class.
+        /// </summary>
+        static Pi()
+        {
+            lock (SyncLock)
+            {
+                // Extraction of embedded resources
+                Resources.EmbeddedResources.ExtractAll();
+
+                // Instance assignments
+                Gpio = GpioController.Instance;
+                Info = SystemInfo.Instance;
+                Timing = Timing.Instance;
+                Spi = SpiBus.Instance;
+                I2C = I2CBus.Instance;
+                Camera = CameraController.Instance;
+                PiDisplay = DsiDisplay.Instance;
+            }
+        }
+
+        #region Components
+
+        /// <summary>
+        /// Provides access to the Raspberry Pi's GPIO as a collection of GPIO Pins.
+        /// </summary>
+        public static GpioController Gpio { get; }
+
+        /// <summary>
+        /// Provides information on this Raspberry Pi's CPU and form factor.
+        /// </summary>
+        public static SystemInfo Info { get; }
+
+        /// <summary>
+        /// Provides access to The PI's Timing and threading API
+        /// </summary>
+        public static Timing Timing { get; }
+
+        /// <summary>
+        /// Provides access to the 2-channel SPI bus
+        /// </summary>
+        public static SpiBus Spi { get; }
+
+        /// <summary>
+        /// Provides access to the functionality of the i2c bus.
+        /// </summary>
+        public static I2CBus I2C { get; }
+
+        /// <summary>
+        /// Provides access to the official Raspberry Pi Camera
+        /// </summary>
+        public static CameraController Camera { get; }
+
+        /// <summary>
+        /// Provides access to the official Raspberry Pi 7-inch DSI Display
+        /// </summary>
+        public static DsiDisplay PiDisplay { get; }
+
+        /// <summary>
+        /// Gets the logger source name.
+        /// </summary>
+        internal static string LoggerSource => typeof(Pi).Namespace;
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Restarts the Pi. Must be running as SU
+        /// </summary>
+        /// <returns>The process result</returns>
+        public static async Task<ProcessResult> RestartAsync() => await ProcessRunner.GetProcessResultAsync("reboot", null, null);
+
+        /// <summary>
+        /// Restarts the Pi. Must be running as SU
+        /// </summary>
+        /// <returns>The process result</returns>
+        public static ProcessResult Restart() => RestartAsync().GetAwaiter().GetResult();
+
+        /// <summary>
+        /// Halts the Pi. Must be running as SU
+        /// </summary>
+        /// <returns>The process result</returns>
+        public static async Task<ProcessResult> ShutdownAsync() => await ProcessRunner.GetProcessResultAsync("halt", null, null);
+
+        /// <summary>
+        /// Halts the Pi. Must be running as SU
+        /// </summary>
+        /// <returns>The process result</returns>
+        public static ProcessResult Shutdown() => ShutdownAsync().GetAwaiter().GetResult();
+
+        #endregion
+    }
+}

Unosquare.RaspberryIO/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("Unosquare Raspberry IO")]
+[assembly: AssemblyDescription("The Raspberry Pi's IO Functionality in an easy-to use API for Mono/.NET Core\n\nThis library enables developers to use the various Raspberry Pi's hardware modules including the Camera to capture images and video, the GPIO pins, and both, the SPI and I2C buses.")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Unosquare")]
+[assembly: AssemblyProduct("Unosquare.RaspberryIO")]
+[assembly: AssemblyCopyright("Unosquare (c) 2016-2018")]
+[assembly: AssemblyTrademark("https://github.com/unosquare/raspberryio")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("8c5d4de9-377f-4ec8-873d-6eef15f43516")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("0.17.0")]
+[assembly: AssemblyFileVersion("0.17.0")]

Unosquare.RaspberryIO/Resources/EmbeddedResources.cs

@@ -0,0 +1,65 @@
+namespace Unosquare.RaspberryIO.Resources
+{
+    using Native;
+    using Swan;
+    using System;
+    using System.Collections.ObjectModel;
+    using System.IO;
+
+    /// <summary>
+    /// Provides access to embedded assembly files
+    /// </summary>
+    internal static class EmbeddedResources
+    {
+        /// <summary>
+        /// Initializes static members of the <see cref="EmbeddedResources"/> class.
+        /// </summary>
+        static EmbeddedResources()
+        {
+            ResourceNames =
+                new ReadOnlyCollection<string>(typeof(EmbeddedResources).Assembly().GetManifestResourceNames());
+        }
+
+        /// <summary>
+        /// Gets the resource names.
+        /// </summary>
+        /// <value>
+        /// The resource names.
+        /// </value>
+        public static ReadOnlyCollection<string> ResourceNames { get; }
+
+        /// <summary>
+        /// Extracts all the file resources to the specified base path.
+        /// </summary>
+        public static void ExtractAll()
+        {
+            var basePath = Runtime.EntryAssemblyDirectory;
+            var executablePermissions = Standard.StringToInteger("0777", IntPtr.Zero, 8);
+
+            foreach (var resourceName in ResourceNames)
+            {
+                var filename = resourceName.Substring($"{typeof(EmbeddedResources).Namespace}.".Length);
+                var targetPath = Path.Combine(basePath, filename);
+                if (File.Exists(targetPath)) return;
+
+                using (var stream = typeof(EmbeddedResources).Assembly()
+                    .GetManifestResourceStream($"{typeof(EmbeddedResources).Namespace}.{filename}"))
+                {
+                    using (var outputStream = File.OpenWrite(targetPath))
+                    {
+                        stream?.CopyTo(outputStream);
+                    }
+
+                    try
+                    {
+                        Standard.Chmod(targetPath, (uint)executablePermissions);
+                    }
+                    catch
+                    {
+                        /* Ignore */
+                    }
+                }
+            }
+        }
+    }
+}

Unosquare.RaspberryIO/Unosquare.RaspberryIO.csproj

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{8C5D4DE9-377F-4EC8-873D-6EEF15F43516}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Unosquare.RaspberryIO</RootNamespace>
+    <AssemblyName>Unosquare.RaspberryIO</AssemblyName>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>TRACE;DEBUG;NET452</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <LangVersion>7.1</LangVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE;NET452</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <LangVersion>7.1</LangVersion>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Camera\CameraColor.cs" />
+    <Compile Include="Camera\CameraController.cs" />
+    <Compile Include="Camera\CameraRect.cs" />
+    <Compile Include="Camera\CameraSettingsBase.cs" />
+    <Compile Include="Camera\CameraStillSettings.cs" />
+    <Compile Include="Camera\CameraVideoSettings.cs" />
+    <Compile Include="Camera\Enums.cs" />
+    <Compile Include="Computer\DsiDisplay.cs" />
+    <Compile Include="Computer\NetworkAdapterInfo.cs" />
+    <Compile Include="Computer\NetworkSettings.cs" />
+    <Compile Include="Computer\OsInfo.cs" />
+    <Compile Include="Computer\PiVersion.cs" />
+    <Compile Include="Computer\SystemInfo.cs" />
+    <Compile Include="Computer\WirelessNetworkInfo.cs" />
+    <Compile Include="Gpio\Enums.cs" />
+    <Compile Include="Gpio\GpioController.cs" />
+    <Compile Include="Gpio\GpioPin.cs" />
+    <Compile Include="Gpio\GpioPin.Factory.cs" />
+    <Compile Include="Gpio\I2CBus.cs" />
+    <Compile Include="Gpio\I2CDevice.cs" />
+    <Compile Include="Gpio\SpiBus.cs" />
+    <Compile Include="Gpio\SpiChannel.cs" />
+    <Compile Include="Native\Delegates.cs" />
+    <Compile Include="Native\HardwareException.cs" />
+    <Compile Include="Native\HighResolutionTimer.cs" />
+    <Compile Include="Native\Standard.cs" />
+    <Compile Include="Native\SystemName.cs" />
+    <Compile Include="Native\ThreadLockKey.cs" />
+    <Compile Include="Native\Timing.cs" />
+    <Compile Include="Native\WiringPi.cs" />
+    <Compile Include="Native\WiringPi.I2C.cs" />
+    <Compile Include="Native\WiringPi.SerialPort.cs" />
+    <Compile Include="Native\WiringPi.Shift.cs" />
+    <Compile Include="Native\WiringPi.SoftPwm.cs" />
+    <Compile Include="Native\WiringPi.Spi.cs" />
+    <Compile Include="Pi.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Resources\EmbeddedResources.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Resources\gpio.2.44" />
+    <EmbeddedResource Include="Resources\libwiringPi.so.2.46" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Unosquare.Swan.Lite\Unosquare.Swan.Lite.csproj">
+      <Project>{ab015683-62e5-47f1-861f-6d037f9c6433}</Project>
+      <Name>Unosquare.Swan.Lite</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Unosquare.Swan\Unosquare.Swan.csproj">
+      <Project>{2ea5e3e4-f8c8-4742-8c78-4b070afcfb73}</Project>
+      <Name>Unosquare.Swan</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>