diff --git a/Button/Button.atsuo b/Button/Button.atsuo
index f045b10..88004ff 100644
Binary files a/Button/Button.atsuo and b/Button/Button.atsuo differ
diff --git a/Button/Button/Led.hpp b/Button/Button/Led.hpp
index 8dc3552..311b8b1 100644
--- a/Button/Button/Led.hpp
+++ b/Button/Button/Led.hpp
@@ -9,6 +9,7 @@
 #define LED_H_
 
 #include "pin.hpp"
+#include <avr/interrupt.h>
 
 template <typename Port, int pin_red, int pin_green, int pin_blue>
 class Led {
@@ -56,17 +57,47 @@ class Led {
 		}
 	private:
 		void init() {
+			r = 0;
+			g = 0;
+			b = 0;
 			red::make_output();
 			green::make_output();
 			blue::make_output();
+			
+			// Timer/Counter 0 initialization
+			// Clock source: System Clock
+			// Clock value: 16000,000 kHz
+			// Mode: Normal top=0xFF
+			// OC0 output: Disconnected
+			// Timer Period: 0,016 ms
+			TCCR0=(0<<WGM00) | (0<<COM01) | (0<<COM00) | (0<<WGM01) | (0<<CS02) | (0<<CS01) | (1<<CS00);
+			TCNT0=0x00;
+			OCR0=0x00;
+			sei();
 		}
 		void uninit();
 		const typedef avrlib::pin<Port, pin_red> red;
 		const typedef avrlib::pin<Port, pin_green> green;
 		const typedef avrlib::pin<Port, pin_blue> blue;
-		uint8_t r = 0;
-		uint8_t g = 0;
-		uint8_t b = 0;
+		static uint8_t r;
+		static uint8_t g;
+		static uint8_t b;
+		/* TIMER0_OVF_vect */
+		static void timer_int() __asm__("__vector_11") __attribute__((__signal__, __used__)) {
+			for(uint8_t i=0;i<0xFF;i++) {
+				uint8_t rgb = 0;
+				if(i<r) {
+					rgb |= RED;
+				}
+				if(i<g) {
+					rgb |= GREEN;
+				}				
+				if(i<b) {
+					rgb |= BLUE;
+				}
+				this->color(rgb);
+			}
+		}
 };
 
 
diff --git a/Button/Button/canaddress.h b/Button/Button/canaddress.h
index 8533826..e752f77 100644
--- a/Button/Button/canaddress.h
+++ b/Button/Button/canaddress.h
@@ -14,6 +14,8 @@
 #define CAN_SEND_BUTTON_ID 0x01
 #define CAN_GET_BUTTON_ID 0x02
 #define CAN_GET_COLOR 0x03
+#define CAN_GET_OK 0x04
+#define CAN_GET_WRONG 0x05