Motor:bit for Micro:bit

A motor driver expansion board for BBC micro:bit featuring dual DC motor outputs, 14 GPIO breakout pins, and a built-in buzzer. Perfect for building DIY robot cars, motorised projects, and sensor-driven creations.

Powered by the TB6612 motor driver chip with up to 1.2A per channel. Includes GVS-style connectors compatible with OCTOPUS series sensors and modules, with switchable 3.3V/5V output on select pins.

Key Features

• Dual Motor Outputs – Drive 2× DC motors at up to 1.2A each
• TB6612 Driver Chip – Efficient, reliable motor control
• 14 GPIO Breakouts – GVS-style pins for sensors and modules
• Voltage Selection – 3.3V/5V switch for 6 ports (P13-P16, P19-P20)
• I2C Port – P19/P20 for I2C devices
• Built-in Buzzer – Passive buzzer on P0 for music and sound
• Wide Power Input – 6-12V DC power connector
• Power Switch – On/off control

Pin Configuration

• 3.3V Ports: P3, P4, P5, P6, P7, P9, P10 (P3, P4, P10 support analogue input)
• 3.3V/5V Switchable: P13, P14, P15, P16, P19, P20
• I2C: P19 (SCL), P20 (SDA)
• Buzzer: P0
• Motors: M1, M2

Specifications

• Motor Driver: TB6612
• Motor Current: 1.2A max per channel
• Power Input: 6–12V DC
• IO Voltage: 3.3V or 5V (switchable on 6 ports)

Ideal For

• DIY robot cars
• Motorised micro:bit projects
• Sensor-driven robots
• STEM education

Package Contents

• 1× Motor:bit expansion board