In his write-up, [Mike] started by listing all the different sensors he had considered to measure the ... see in the picture above using PVC parts. Enclosed are the ultrasonic sensor, a ...

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 ...

[Nubmian] wrote in to share his experiments with measuring airflow in an HVAC system. His first video deals with using with ultrasonic ... sensor. The multimeter is soon replaced by an Arduino ...