A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.200076 discusses miniaturized highly sensitive ultrasound sensor for photoacoustic imaging. Photoacoustic imaging generates ...

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 ...