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Unread 04-02-2011, 12:38
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Matt Krass Matt Krass is offline
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AKA: Dark Ages
FRC #0263 (Sachem Aftershock)
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Re: Intermittent digital signal when PWMs are used

I agree on the power issue. Do you have a multimeter/voltmeter?
If you could measure the voltage between the +5V and GND pins on one of the digital inputs (any of them should work) while the PWMs are on and you're seeing this intermittent problem, and while they're off and everything is working, that may help us diagnose this problem better. Best bet would be to take multiple measurements, just to be sure we get a good one. Also, if you could measure your battery voltage while you're at it, that info would be helpful too.

Matt
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Matt Krass
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I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)