[Andy Grove] built an eight-sensor HC-SR04 breakout board, because the ultrasonic distance ... that’s a Raspberry Pi, so he needed the usual 5 V to 3.3 V level shifting in between.

A new Raspberry Pi project ... GY-91 shematic. Connect sensor through the GPIO. There is a very little manipulation to connect 4 pins of the sensor on the GPIO. 3v3 is for 3.3v power, got to ...

This module uses an ultrasonic sensor to trigger certain notes to be played through the pi. An object is held in front of the sensor and moved either closer or further away to make music. This is ...

[Thomasz] took a look at the Raspberry Pi 4 and realized the new USB 3.0 chip is attached to the ... Throw that in an ultrasonic cleaner, and you have a blank canvas to work PCI magic.

The new Raspberry Pi-powered infrasonic boom sensor can detect sounds from a local region that are inaudible to human ears. Users can also connect the ... and Raspberry Pi 3 Model B.