Arduino - Ultrasonic Sensor HC-SR04 Tutorial in Hindi | Arduino Programming in Hindi - Tutorial #14
An ultrasonic sensor HC-SR04 uses sonar to determine the distance to an object. This sensor can read distances from 2cm to 400cm. In this video, we have explained how to use the HC-SR04 sensor with Arduino. We have used this sensor to make a smart parking assistant using a buzzer and LED.
The components needed for this tutorial are:-
1. Arduino Board
2. HC-SR04 Ultrasonic Sensor
3. KY-012 Active Buzzer Module
4. A 220-ohm resistor
5. Some connection wires, or jumper wires.
Source code of the sketch used in this video:
https://pastebin.com/Jd4LXNtX
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