Detach servo resource when done

crawler_software/arduino/crawler_slave/crawler_slave.ino

@@ -51,7 +51,9 @@ void receiveEvent(int n) {
   
     switch(id) {
       case 1:
-        windowWiperServo.write(val);
+        windowWiperServo.write(val); // Set a val
+        delay(5); // pause for a moment
+        windowWiperServo.detach(); // Detach (stop moving) the servo
         break;
     }
   }