         break;
       case 3:
         usout = puff;
+        break;
+      case 7:
+        usout = greenled;
         break;
       default:
         usout = 0;

  digitalWrite(puff, LOW);
  digitalWrite(whisker, LOW);
  digitalWrite(tonech, LOW);

  Serial.begin(9600);
}

  pinMode(puff, OUTPUT);
  pinMode(whisker, OUTPUT);
  pinMode(tonech, OUTPUT);
  pinMode(greenled, OUTPUT); 

  // Default all output pins to LOW - for some reason they were floating high on the Due before I (Shane) added this
  digitalWrite(camera, LOW);
