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First steps

Sound input

Discover how to use the new micro:bit's built-in microphone to control your programs and measure sounds around you

The new micro:bit with sound has a built-in microphone sensor. It can react to loud and quiet sounds, and also measure how loud your environment is.

These three projects will get you started creating code using the microphone:

Set 1: Sensing sound

Start by making a project that reacts to loud sounds, then advance to measuring the amount of sound around you.

Clap your hands to make the micro:bit heart beat

Learn more about the new micro:bit's built-in microphone.