A sound sensor is the cheapest way to give an Arduino UNO R4 an ear. It will not tell you what it heard - it tells you that something was loud enough. That turns out to be plenty: clap to switch on a ...

Anyone can hang a poster from the wall, but if you're willing to put a little DIY into your home decorations, this Arduino-powered LED wall-art looks amazing, and reacts to music playing in the room ...

Here a student uses a sound trigger to capture a photo as a balloon in the process of ripping apart as it pops. Note, there is a banana floating in space that has only just started falling when the ...