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Micro:bit GPIO Expansion Board

The micro:bit GPIO Expansion Board makes it easier to connect sensors, modules, LEDs, buzzers, servos, and other parts to your micro:bit. It breaks out the micro:bit IO pins into a cleaner pin layout for faster wiring and easier project testing.

This board is useful for students, teachers, makers, and beginners working on STEM projects, classroom activities, robotics, and basic electronics. It also includes an onboard buzzer, so users can create sound and music projects directly from MakeCode or other supported micro:bit tools.

Why Choose This Expansion Board?

  • Makes micro:bit pins easier to access and use.
  • Works with micro:bit V1 and micro:bit V2.
  • Breaks out the IO ports for cleaner wiring.
  • Includes an onboard buzzer for sound projects.
  • Small board size makes it good for DIY builds.
  • Has LEGO-compatible holes for easy mounting.
  • Good for sensors, modules, servos, LEDs, and classroom projects.

Common Applications

  • micro:bit STEM lessons
  • Sensor-based projects
  • LED and buzzer projects
  • Servo and simple robotics projects
  • Classroom coding activities
  • MakeCode music projects
  • Basic electronics practice
  • DIY micro:bit prototypes

What’s Included?

  • micro:bit GPIO Expansion Board - 1 pc

Note: micro:bit board, USB cable, battery pack, sensors, wires, and other accessories are not included unless stated in the package.

Technical Specifications

Product Type GPIO expansion board for micro:bit
Compatible Board micro:bit V1 and micro:bit V2
Main Function Breaks out micro:bit IO pins for easier wiring
Onboard Feature Buzzer for sound and music projects
Mounting Two LEGO-compatible mounting holes
Board Size About 37mm x 57mm
PCB Thickness About 1.6mm
Best For STEM lessons, micro:bit projects, sensors, servos, LEDs, modules, and robotics practice
Skill Level Beginner to intermediate

Setup Notes

Insert the micro:bit into the edge connector slot, then connect your sensor, module, or output part to the matching IO, power, and ground pins.

The onboard buzzer is commonly connected to P0. If your project needs to use P0 for another device, check the board jumper or buzzer setting before wiring.

Important Notes

  • micro:bit board is not included.
  • Check pin labels before connecting modules.
  • Do not place the board on a metal surface while powered.
  • Use proper voltage for sensors and connected parts.
  • Disconnect power before changing wiring.

Recommended Add-ons

FAQ

What is this board used for?

It is used to make micro:bit IO pins easier to access for wiring sensors, LEDs, servos, buzzers, and other modules.

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Does it include a micro:bit board?

No. This listing is for the GPIO expansion board only.

Does it work with micro:bit V2?

Yes. It works with both micro:bit V1 and micro:bit V2.

Does it have a buzzer?

Yes. It has an onboard buzzer for sound and music projects.

Is this good for classroom projects?

Yes. It is useful for STEM lessons, coding activities, and basic electronics practice.

Build with this board

// from learn.circuit.rocks

Notes from the bench

// from blog.circuit.rocks

Ask the community

// from forum.circuit.rocks