i just connected the ping sensor with the radar scan,problem i hear a , knispering sound comming out the sensor. is it broken ?
If it works it isn't broken.
i tested it works but what is that sound
here a video
Ultrasonic sensor uses sound. You're hearing the tick of the speaker that generates the ultrasonic sound
ah its normal then.
I could hear mine too when I'm close to it. I'm guessing the frequency is just below the ultrasonic range (or we have ultrasonic ears!).
danbachmann
thanks for telling