Hello everyone! I can't seem to figure out why I can't get my Arduino's onboard LED to light up when an object is detected by one of my 5 ultrasonic sensors. It should trigger the LED high when an object is 59cm away or less in any of my sensors. The wiring is good, and the serial monitor displays…

Lighting an LED when a HC-SR04 ultrasonic sensor is triggered

sterretje May 19, 2018, 6:03am 4

Maybe you need something like a for loop there.

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