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Build Better micro:bit Robots and Motor Projects

The micro:bit Motor Driver Expansion Board makes it easier to connect your BBC micro:bit to motors, servos, and other project modules. It is ideal for small robots, smart cars, moving mechanisms, and classroom automation projects.

This board adds motor control and extra ports without messy wiring. Just slot your micro:bit into the edge connector, connect your motors or servos, add power, and start coding.

Why Use This Expansion Board?

  • Controls up to 4 DC motors or 2 stepper motors
  • Includes 8 servo interfaces for moving arms, grippers, or steering systems
  • Uses I2C control to save micro:bit pins
  • Great for robotics, STEM lessons, and beginner automation projects
  • Has labeled ports for cleaner and easier wiring
  • Works well with small motors such as ordinary DC motors and N20 gear motors

What You Can Build

  • micro:bit smart car
  • Line-following robot
  • Servo-controlled robot arm
  • Small walking robot
  • Mini conveyor project
  • Motorized school project prototype

Recommended Add-ons

Technical Specifications

Compatible Board BBC micro:bit
Input Voltage 3.5V to 5.5V DC
Digital Output Voltage 0V / 3.3V
Analog Output Voltage 0V to 3.3V DC
Motor Interface 4 DC motors or 2 stepper motors
Servo Interfaces 8 servo outputs
micro:bit GPIO Pins P0, P1, P2, P8, P12, P13, P14, P15, P16
Motor Driver HR8833 motor driver
Max Motor Current Up to 1.5A per channel
Board Size Approx. 63mm x 58mm

Power Notes

Use an external power source when driving motors or multiple servos. The micro:bit alone should not be used as the main power source for motors. Always match the motor power supply to your motor requirements.

What’s in the Box

  • 1 x micro:bit Motor Driver Expansion Board

Note: BBC micro:bit board, motors, servos, wheels, and batteries are not included unless stated in the product bundle.

FAQ

Can this control DC motors?

Yes. It can control up to 4 DC motors.

Can this control stepper motors?

Yes. The 4 motor outputs can also be used for up to 2 stepper motors.

Can I connect servos?

Yes. The board has 8 servo interfaces for servo-based projects.

Is this good for beginner robot projects?

Yes. It is a good choice for micro:bit smart cars, small robots, and school projects.

FAQ

Will this ship from Manila?

Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.

Do you ship nationwide?

Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.

Can I get this on a school PO or class order?

Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.

Is this compatible with Arduino, ESP32, or Raspberry Pi?

Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.

What's your return policy?

7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.

Do you offer technical support?

Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.

Build with this board

// from learn.circuit.rocks

Notes from the bench

// from blog.circuit.rocks

Ask the community

// from forum.circuit.rocks