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micro:bit at home - door alarm

18 May 2020

Has anyone been in your room? With a micro:bit, a battery pack and a magnet you can make an alarm to alert you to sneaky snoopers...

What you'll make

Get coding

Now open the MakeCode editor where you’ll write the code for your program:

How to transfer your program to your micro:bit

Discover more

This project uses the compass input sensor and the LED display output. Find out more about them in the videos below:

Find out more about calibrating the micro:bit compass in our support article.

There are more micro:bit at home activities to explore:


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