How the servo is wired up

Why so many wires?

A micro:bit does not provide enough power for a servo motor - we need to give the motor an extra battery pack.

To stop weird things from happening, the negatives wire all need to be connected together:

• The battery pack's black wire.
• The servo motor's brown wire.
• The micro:bit's GND connection.

To make it easier to connect the micro:bit up, we have added crocodile clips into the circuit.

We used a breadboard to connect all the different wires together. To learn how a breadboard works, click here.

Wiring diagram

A diagram of the full circuit is embedded below (Click here for a static image).

• The three negative wires are connected together, as described above.
• The two positive wires are connected together - the red wire from the battery and the red wire from the servo motor.
• The orange wire of the servo motor is connected to pin 1 on the micro:bit.

If you have a Tinkercad account, and would like to experiment with this circuit, you can find it here.