Ultrasonic Sensor HC-SR04 with Arduino Tutorial You will learn how to interface Ultrasonic Sensor HC-SR04 with Arduino. It can be an Ultrasonic Range Sensor or any purposes. ABOUT THIS PROJECT- Ultrasonic Sensor HC-SR04 is a sensor that can measure distance . It emits an ultrasound at 40 000 Hz (40kHz) which travels through the air and if there is an object or obstacle on its path It will bounce back to the module. Considering the travel time and the speed of the sound you can calculate the distance. The configuration pin of HC-SR04 is VCC (1), TRIG (2), ECHO (3), and GND (4). The supply voltage of VCC is +5V and you can attach TRIG and ECHO pin to any Digital I/O in your Arduino Board. Ultrasonic Sensor HC-SR04 Configuration and Specification Ultrasonic Sensor HC-SR04 Principle The materials that we need to make this project: 1. Arduino UNO R3 CH340 (you can use any Arduino Boards) 2. Ultrasonic Sensor HC-SR04 3. Male to Male Jumper Wires 4. Breadboard The connection of A
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