Micro:bit Physical computing guides
No. 3: Servos

​​Connecting a Servo to a micro:bit
Instructions on how to attach a Servo to a BBC micro:bit.

What you will need

• BBC micro:bit
• Micro USB cable
• Battery pack with 2 x AAA batteries
• 1 x Servo
• 3 x Breadboard jumper wires
• 3 x Crocodile clip leads

Servo

Wiring instructions

1. Disconnect the micro:bit from your computer and disconnect the battery pack.
2. Insert the jumper wires into the servo plug. See figure 1. (if you don’t have a black, red or orange jumper wires, you can replace these with any colour you wish as long as you remember which jumper wire is connected to which lead on your servo!)
3. Connect the crocodile clips to the corresponding jumper wires:
   1. Brown to GND pin.
   2. Red to 3V.
   3. Orange to Pin 0.

​
​Programming your Servo
Copy the below:

To access the 'Pins' blocks, click on 'Advanced'.

​
​Testing your code

1. Download your program to your micro:bit.
2. Reconnect your battery and run your program.

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