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For questions about the HC-SR04 ultrasonic ranging sensor.

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1 answer
736 views

Using HC-05 to play a sound on an app

I connected a HC-SR04 Ultrasonic Sensor to Arduino Uno and built the circuit as shown in the link below. I also used the code below the link. Together, this code and the circuit detect any motion that …
Rishi Kavikondala's user avatar