Motion Sensing Using the Doppler Effect

A hands-on experiment that turns your laptop speaker and microphone into a motion sensor: it plays an inaudible tone and detects hand waves from the doppler shift, explained step by step.

Tonble
Share X Reddit Bluesky Email
Screenshot of danielrapp.github.io

Stumble onto more like this

One click takes you to a page you didn't know you were looking for. Rate it and the next one lands closer to your taste.

Add to Browser — it's free

Works in Chrome, Edge and Brave. No account needed.