Understanding the Working Principle of HC-SR04 Ultrasonic Ranging Module
The HC-SR04 ultrasonic ranging module is an inexpensive and highly accurate sensor used to measure distances using ultrasonic waves. It has become an essential tool in a variety of fields, from robotics and automation to security systems and environmental monitoring. In this first part, we will explore the core working principles of the HC-SR04 and how it functions as a reliable sensor for measuring distances.