Intro

Nearly all of our wireless communication is done using radio waves*, including phone calls, text messages, and WiFi. With its built-in radio transmitters and receivers, the Micro:Bit microcontroller makes it super easy to build all sorts of projects with radio communication.

This particular project is a simple & quick way to send text messages between two Micro:Bit microcontrollers – the sender writes a (short) message that is transmitted via radio to the receiving Micro:Bit, which shakes a lil’ puppet using a servo motor, and then displays the message on the Micro:Bit LED screen. Each Micro:Bit can be both a sender and receiver.

It’s sort of like a two-person Twitter.. if the tweet notified you via dancing cardboard robot puppet!

*Radio waves are long-wavelength light waves. Check out the electromagnetic spectrum here!

This guide was first published on Sep 01, 2017. It was last updated on Nov 20, 2018. This page (Intro) was last updated on Aug 01, 2017.