Electronics

The position of the DIP switch doesn’t affect the balance much, so you can place it wherever you prefer.

If the battery holder already has a cable attached, you can use that one.

The position of the voltage regulator won’t affect the balance much, so it’s best to place it near the DIP switch.

If the battery holder already has such a cable attached to it, feel free to use it.

If everything is connected correctly, the Arduino microcontroller will light up, powered with 5V from the 9V battery!