/*
GRAY CODE CONVERTER
*/

byte dectoGray(byte value) {     
  volatile byte encoder = value;
  volatile byte rotation bitRead(encoder, 7);  
  for ( int i = 6; i >= 0; i--) // GRAY to BCD Conversion - Not needed when external decoder used
  {   
   rotation = (rotation << 1) | (bitRead(encoder, i) ^ (rotation & 0x1)); // XOR each bit
  }
 return rotation;
}


void setup(void) {
 Serial.begin(115200);
}

void loop(void) {
  for(byte i=0; i < 256; i++) {
    Serial.print("Dec ");
    Serial.print(i,DEC);
    Serial.print(": Gray: ");
    Serial.print(dectoGray(i),DEC);
    Serial.print(": BIN :");
    Serial.println(dectoGray(i),BIN);
  }

while(1==1);

}