Hey! First post and loving exploring the arduino world with my 2 kids. We are exploring different sensors (sound, laser, camera) for measuring an object moving over the top of the sensor. The speed is anywhere between 30-80mph. We don’t need to measure speed, just that an object passed over the sensor. We didn’t have much luck with ultrasonic, so we are trying the laser sensor (VL53L0X). Seems faster, but still seems to be missing some faster speeds. Is there any setting we can play with to adjust? Are we using the wrong sensors? Our next would be IR maybe..
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Keep having fun !
For just detecting passing by, any light beam that is broken and the pulse send to an interrupt line, is as fast as it can get.
Programming interrupts might be new but is not too difficult.
There are tutorials on the net e.g.
What is the object? Naturally, a larger object will have a longer sensing time and a smaller object less.
Object is tennis ball.
That would be absorbing the sound, not reflecting it. A light break-beam sensor is about your only choice.
No chance with a ToF sensor?