Ultrasonic Sensor HC-SR04 Interfacing with Arduino

The HC-SR04 used for measuring distances in electronic projects.This module utilizes ultrasonic sound waves to determine the distance between the sensor and an object. Interfacing the HC-SR04 ultrasonic sensor with an Arduino is a common project for measuring distance. In this blog, we will explore about ultrasonic sensor, including how they work and how to interface it with Arduino.