One way to accomplish this involves four HC-SR04 ultrasonic sensor units that transmit data through an Arduino into a Linux computer. The end result is a virtual touchscreen that can be made at home.

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 ...

Continue reading “A Virtual Touchscreen (3D Ultrasonic Radar)”→ Posted in Tech Hacks Tagged analog signal, arduino, ultrasonic sensor, virtual touchscreen ...

In contrast to an ultrasonic sensor, an ADAS radar sensor uses electromagnetic (EM) waves to determine an object’s range, velocity, and angle in its field of view.

Applications 80G mmWave Radar Ultrasonic Sensor Expanded portfolio bridges the gap between cost-efficiency and mission-critical reliability across smart infrastructure and industrial automation ...