Kitronik Ltd

MI:Power board for the BBC micro:bit

Regular price $7.70

In stock

The MI:power board for the BBC micro:bit brings real portability to your wearable projects. The stylish, lightweight PCB is designed to fit snugly against the BBC micro:bit and features a built in buzzer and 3V coin cell holder.

Note: this board is currently only compatible with the micro:bit V1 - a new version is soon to be released, which will have longer spacers to accomodate the micro:bit V2.

When assembled, the MI:power board is connected directly to the 3V, GND and P0 connections on the micro:bit. The 3V and GND connections provide power to the micro:bit and the built in buzzer is connected to P0, which is the default output pin when using the audio functions in the Block Editor software.

The board has an easy to access on/off switch, which makes it easy to turn a project on and off, rather than have to disconnect the power supply from the BBC micro:bit.

Once the unit is assembled and attached to the BBC micro:bit the mechanical fixings prevent the battery from being removed unless you use a screwdriver, so whatever the use, the battery will remain safely in place.

Spacers, fixings and a battery are all provided.

Please Note: BBC micro:bit is NOT included.


  • Power your BBC micro:bit from a stylish PCB.
  • On-Board buzzer.
  • Easy access on/off switch.


  • 1 x MI:power board for the BBC micro:bit.
  • 3 x Counter Sunk M3 x12mm Machine Screws.
  • 3 x M3 Hex Full Width Nuts.
  • 3 x Plastic Spacers.
  • 1 x CR2032 3V Coin Cell.


  • Length: 51mm.
  • Width: 42mm.
  • Height: 6mm.


  • Pozi drive screwdriver.
  • Pliers.

Free Laser Cutter DXF Files:

Check out the links below for some free downloadable resources for you to use with your laser cutter, designed be our friends at Kitronik. Included in the downloads are DXF files for designs that fit directly to the Mi:power board that allow you to attach it to your belt, wrist strap, lanyard, stand it on your desk or on a design that can be placed in your garden or a plant pot.


    Customer Reviews

    Based on 1 review
    Gives the microbit true portability

    This is a great add-on that gives the microbit true portability. The button cell gives provides a decent running time for the board and the on-board sounder provides adequate audio and aural feedback. Best used with the MI:Powerboard case to provide a robust and practical enclosure for a complete standalone solution.

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