Costing a mere $4, the Raspberry Pi Pico was launched in 2021 using the in-house RP2040 chip. Unlike most other Raspberry Pi models, the Pi Pico isn't a microcomputer, as it is classified instead as a ...

Cheap stuff gets our creative juices flowing. Case in point? [Andy Grove] built an eight-sensor HC-SR04 breakout board, because the ultrasonic distance sensors in question are so affordable that a ...

Andy Grove has published details of a new Ultrasonic Raspberry Pi Piano he has created which can be played using gestures. This innovative project combines the versatility of the Raspberry Pi mini PC ...

You can do some wild things with sound waves, such as annoy your neighbours or convince other road users to move out of your way. Or, if you get into sonolithography like [Oliver Child] has, you can ...