Ultrasonic Sensor HC-SR04 and Arduino Tutorial

Please note, circuit diagram at 0:56 should be: 5v to VCC, GND to GND, D10 to Trig, D9 to Echo. https://howtomechatronics.com/tutoria... ► More details, circuit schematics and codes from my official website. In this Arduino Tutorial you will learn how to use the HC-SR04 Ultrasonic sensor. It can measure distance from 2 cm to 4 meters with a ranging accuracy up to 3mm. The working principle of this module is quite simple. Visit HowToMechatronics.com for more Tutorials, Tips, Projects and How It Works videos: ► https://howtomechatronics.com/ Like my page on Facebook: ►   / howtomechatronics   Add me on Google+: ►https://plus.google.com/+Howtomechatr... Music: Aduro by Jens Kiilstofte (machinimasound.com/music)