Arduino Project 18- Arduino based ultrasonic distance sensor with display

In this tutorial, we will build a digital ultrasonic distance meter. We will use a 16×2 LCD display to view the distance measured. We are using ultrasonic range finder HC-SR04 for this project. The HC-SR04 sensor measures the time taken by the sound waves transmitted after meeting an object that reflects them.

ultrasonic range finder

Wiring diagram

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