Welcome to ETC Educational Technology Connection (HK) Ltd!
Battery Holder and Battery
A stylish way to power your BBC micro:bit from a 3V coin cell. A piezo buzzer is built in and a battery is included.
(Click here for our full selection of the BBC micro:bit + essential accessories/add-ons)
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.
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.
1 minute Project idea with the Mi Power Board
3 minutes overview on the Mi:Power Board for the BBC micro:bit
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.
Free Laser Cutter DXF Files:
We've also created some free downloadable resources for you to use with your laser cutter. 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. You can see some examples of these in the images below.