* The '''battery level jumper''' connects the Arduino’s analog pin 1 to a voltage divider circuit that allows you to monitor the Zumo’s battery voltage. This jumper is disconnected by default and can be connected by soldering a short length of wire between the two holes. | * The '''battery level jumper''' connects the Arduino’s analog pin 1 to a voltage divider circuit that allows you to monitor the Zumo’s battery voltage. This jumper is disconnected by default and can be connected by soldering a short length of wire between the two holes. |