         PORTC = 0x00;
         attachInterrupt(digitalPinToInterrupt(triggerPin), ToggleLED,  CHANGE);
         
-        break;   
+        break;  
+
+	   case ('Y') : 
+		// Return device ID 
+		Serial.println("NicoLaseSequencer");
+		break;
 
 
       case ('?') : 


          // Return current shutter state
            if (shutterState){
              Serial.println('1');            
            }
            else {
              Serial.println('0');
            }

            break;

*/

// Version variables
const String version = "1.2";

// Serial variables
String inputString = "";         // a string to hold incoming data
