Guys,
Is there any possibilities to create a simple speed sensor from PIR?
So I will put PIR 1 and PIR 2 in a distance,
If an object is passing, I'll calculate the time needed from PIR 1 to PIR 2, from there I can determine the speed because I know the distance between PIR 1 and PIR 2,
Any ideas or experiences will be very appreciated,
Thank you