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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.
well, it's quite tricky.
if u use 2 IR sensors amd u know the distance between them, it could work
the ideea is to use the seosors, conect them to a stopwatch(a digital one) to the start and stop buttons and have the time.
u can use the distance batween the sensors so that the watch will show the result in km/h or m/h
any way,
good luck
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