diff --git a/Matomat/Helper.cs b/Matomat/Helper.cs
index 563f893..a520730 100644
--- a/Matomat/Helper.cs
+++ b/Matomat/Helper.cs
@@ -11,15 +11,45 @@ namespace Matomat
 {
     class Helper
     {
-        internal static double Serialize(string text)
+        internal static string Serialize(LCDDisplay.Comport comport)
         {
-            Stream stream = new MemoryStream(255);
-            IFormatter formatter = new BinaryFormatter();
-            formatter.Serialize(stream, text);
-            stream.Position = 0;
-            byte[] bytes = new byte[(int)stream.Length];
-            stream.Read(bytes, 0, (int)stream.Length);
-            return BitConverter.ToDouble(bytes, 0);
+            return comport.port + comport.bautrate.ToString() + comport.databits.ToString() + comport.parity.ToString() + comport.stopbits.ToString();
         }
     }
+    public static class String
+    {
+        public static byte[] ToCharArray(this string str, string search, byte[] replace)
+        {
+            byte[] ret = new byte[str.Length];
+            for (int i = 0; i < str.Length; i++)
+            {
+                if (search.IndexOf(str.Substring(i, 1)) != -1)
+                {
+                    ret[i] = replace[search.IndexOf(str.Substring(i, 1))];
+                }
+                else
+                {
+                    ret[i] = Convert.ToByte(Convert.ToChar(str.Substring(i, 1)));
+                }
+            }
+            return ret;
+        }
+    }
+    public static class Array
+    {
+        public static byte[] Substring(this byte[] b, int start, int length)
+        {
+            byte[] ret = new byte[b.Length - start];
+            for (int i = start; (i < b.Length && i < start + length); i++)
+            {
+                ret[i - start] = b[i];
+            }
+            return ret;
+        }
+        public static byte[] Substring(this byte[] b, int start)
+        {
+            return b.Substring(start, b.Length);
+        }
+    }
+                
 }