We’ve all seen acoustic levitation, it’s one of the scientific novelties of our age and a regular on the circuit of really impressive physical demonstrations of science to the public. The sight of ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

As we approach the 100th anniversary of the invention of the dynamic driver speaker, it’s as good a time as ever to reflect on a ubiquitous and familiar, coil-based transducer that reproduces the ...

The Cypress ultrasonic speaker promises a leap in digital sound quality. xMEMS Labs is bringing what it calls breakthrough technology to the wireless earbuds market late next year after a CES 2024 ...