HC-SR04 Ultrasonic sensor Working, Arduino tutorial & projects

HCSR04 Ultrasonic sensor Working, Arduino Connections and Projects

The HC-SR04 ultrasonic sensor working principle is based on the speed of sound or time taken by the sound waves to travel a certain distance. It measures the distance of an object from its surface by emitting and receiving sound waves. There are many kinds of ultrasonic sensors in the market but the most popular … Read more