Uploaded May 2018 | Updated September 2026, 2 weeks ago

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HC-SR04 is the most popular sensor in robotics and Arduino users, almost every obstacle avoiding robot uses this ultrasonic sensor to detect and avoid obstacles. It is very easy to use and to connect to an Arduino. It produces accurate measurements quickly and can be implemented with few lines of code.
HC-SR04:
GearBest: goo.gl/bviyNt
BangGood: goo.gl/zfR5dj
Arduino:
GearBest: goo.gl/P6V6hq
BangGood: goo.gl/cc8YRF

Code: github.com/NikodemBartnik/ArduinoTutorials

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