Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I need to do a pilot project to check the speed of a moving car under a lampost. Is their any circuit which I can use to mount on a lampost and let a buzzer ring when a vehicle in its specific lane exceeds the speed of 45kph
Hardly a pilot project I'd have thought....You need to project a beam ( radar ) and receive it back and compute the time then compare it to a preset value.......
As it happens, there is a radar speed measuring unit just up the road from me....Shall I get it for you? (Joking...)
If you don't want to design the radar gun you could buy a kit like this: **broken link removed**
It has an doppler audio output that you might use to interpret as speed and trip an over-limit alarm.
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