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 ...

Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at ...

It’s an Arduino controlled “RADAR” like project that uses the familiar Parallax ultrasonic sensor.

This innovative sensor is ideally suited to the demands of machinery operating in harsh outdoor conditions, for example; agricultural, construction and other similar industries where working platforms ...

A new ultrasonic fingerprint sensor measures 3-D image of your finger's surface and the tissue beneath it -- enhancing biometrics and information security for smartphones and other devices ...