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Unread 19-02-2014, 08:18
adciv adciv is offline
One Eyed Man
FRC #0836 (RoboBees)
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Re: Sharp Prox IR sensors read shorted

A bit more info: We were reading a ~30 ohm impedance between the robot frame and ground, not a hard short. There is a metal screw in the circuit board holding it to the frame. I suspect that is the circuit path. If I hadn't just thrown away one we fried, I'd dissassemble it for examination. Across the full width of the case using a multimeter and sufficient pressure, we'd measure ~100 ohm impedance.

RufflesRidge, thank you. Is there a capacitance value you recomend? We'd noticed the bouncing and have been using software filtering but I'd like to try this as well.
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