Hey,
I am doing a small project and all I want is the sensor to measure how long does it take the soundwave to travel a certain distance. It was working just fine at one point but then it suddenly started only returning the value of 42 and nothing else, no matter what. I believe it is a hardware problem as every time I touch the sensor (and ground it) it works just fine but the moment I take my finger off it starts giving me 42 again. I am wondering if it isn't just a faulty sensor. Thanks for any advice
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so 42 is a famous number
Have you plugged it correctly, there's some problem with the circuit. Your Ultrasonic Sensor seems fine. You should also try another ultraosnic sensor HC-SR04.