One way to accomplish this involves four HC-SR04 ultrasonic sensor ... For example, at first, only one unit was transmitting at a time, so there was no way the Arduino could identify two objects ...

One way to accomplish this involves four HC-SR04 ultrasonic sensor ... For example, at first, only one unit was transmitting at a time, so there was no way the Arduino could identify two objects ...

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 ...

This one is an unusual smart home project, potentially - how to monitor a fish tank’s health with an AI-enabled ultrasonic sensor system. The detailed project is highlighted on Hackser.io and features ...