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Lap timer

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New Member
Hy.I'm new on this forum.
I'm 17 years old and i'm visiting tehnical high school.
We have to make a project that include microkontoler.
So i decidet to make a LAP TIMER.So i need help.
I have some tehnical knowlage, so where should i star?
I need a scheme,of receiver(which wil be on the start\finish race track)
and something on the motorcycle which will stop the counter.
I picture something like that:
It will save :
best lap time
about 30 lap times
it must have on/off gumb
usb connection.

Thnx for help
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