Blog Post

Voice activated Micro:bit with Machine Learning

Embedded Devices, TinyML

Jan Jongboom

October 13, 2020

Today the new BBC micro:bit was announced, the successor of the highly popular BBC micro:bit. While it retains the same form factor it now packs a microphone and a speaker, and a much more powerful MCU. And what better way to demonstrate these features than by adding some Machine Learning to the new micro:bit?!

In the video above you'll learn how to make your micro:bit respond to a keyword, by training a machine learning model that recognizes your voice. You can use this to make a voice-activated lock, turn LEDs on on command, or control a motor when you say a magic spell. All you need is your new micro:bit, a free Edge Impulse account, your phone (to record new data), and an hour of your time!

Here are some useful resources that are referenced in the video:

Built something interesting? Got questions? Let us know in the Edge Impulse forums.

We can't wait to see what you'll build! 🚀


*Jan Jongboom is the CTO and co-founder of Edge Impulse. For the launch of the first micro:bit he managed to get someone to juggle devices live on camera.*



Are you interested in bringing machine learning intelligence to your devices? We're happy to help.

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