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 ...

IoT-Based Object Detection and Light Control using Arduino, Ultrasonic Sensor, and Relay Module Project Overview This project implements an IoT-based system using an Arduino Uno, an ultrasonic sensor, ...

The ultrasonic sensors are placed on opposite sides of the road and are used to detect the presence of vehicles. The sensor sends out a pulse of ultrasonic sound and measures the time it takes for the ...