The BBC micro:bit continues to gain market share in the educational space. And why not, with an LED matrix display and a built-in Bluetooth LE radio, users can do some advanced projects.

In this guide, one micro:bit will be used as a radio control. Pushing the A and B buttons will transmit commands. A second micro:bit will be connected to an Adafruit Crickit robotics controller. The receiving micro:bit will translate the received radio commands into actions on the Crickit.


The Go bundle includes a battery pack, batteries, and a USB cable for a tiny bit more than the micro:bit alone. This is good for the transmitter.

The receiver is not battery powered, so the regular micro:bit pack is fine.

Adafruit Crickit for micro:bit provides robotics, sound, and light support.

Angled shot of a Adafruit CRICKIT for micro:bit connected to a black squared board.
Sometimes we wonder if robotics engineers ever watch movies. If they did, they'd know that making robots into servants always ends up in a robot rebellion. Why even go down that...
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We'll need a power supply for the Crickit and some interface items. You can choose, but for this tutorial we'll use a servo and an LED NeoPixel strip.

1 x 5V 2A (2000mA) switching power
Barrel connection which matches Crickit
1 x Micro servo
A micro servo to move with Crickit
1 x NeoPixel Strip 30 LEDs
This version has wires that will connect to the Crickit
1 x USB cable - USB A to Micro-B - 3 foot long, data + power
Connect your micro:bit to your computer, a longer cable if needed.


You can use your own wire stripper, but if you don't have one, this one is great.

This guide was first published on Feb 27, 2019. It was last updated on Mar 08, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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