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 ...

If there’s one thing audiences love in sci-fi, it’s a cute robot companion that follows the heroes around. If you want one of your own, starting with this build from [mircemk] could be just the ticket ...

The new UFM-02, a complete, ready-to-use module including sensor board and spool piece, provides a simple and quick way to integrate reliable, accurate ultrasonic flow measurement into a host system.