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 project demonstrates how an ESP32 can read distance data from an HC-SR04 ultrasonic sensor and send it to a Linux server over Wi-Fi using a TCP connection. The system also uses three LEDs to ...