 
 	// Start with support systems off
 	digitalWrite(supportPin, LOW);
+	LED.begin();
 
 	// Set up serial communication
 	Serial.begin(monitorBaud);

		sendCommand(CMD_GET_SNR, blockID, machineID, NULL);
		delay(waitforSerialResponse);
		isValidResponse = getResponse(readData);
	}
	// ----------------------------------------------------------------------
	// RFID tag detected, get user ID and authorization for this machine

		// --------------------------------------------------------------------
		else {
			// Sound and text feedback
			green();			
			playCoinSound();
			getStringFromMem(displayUsedTime);
			Serial.println(existingTime);
