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 ...

A high brightness white LED night light, that is activated by an ultrasonic sensor, with battery backup based on a joule thief circuit. Full details of the build are given as I step through the design ...

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...

Denso. has filed a patent for an ultrasonic sensor designed for vehicles. The sensor includes a magnetic substance, diaphragm, and electromagnetic transducer. The diaphragm can ultrasonically ...