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Unread 16-03-2011, 13:44
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AKA: Mr. D (Dick DiPasquale)
FRC #0241 (Pinkerton Robotics)
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Join Date: Feb 2009
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Location: Derry, NH
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Re: Robots not under driver control- does it happen- do you determine why?

Quote:
Originally Posted by pfreivald View Post
We're still trying to figure out why we're getting COM drops.

Our wiring is sound (and connections both strain gauged and either hot glued or taped).
Our power appears to be constant.
Our bridge was replaced with another bridge.
Our bridge is up high and visible everywhere but the bottom (it is upside-down) from 360 degrees with very little obstruction from the aluminum frame.
We are not getting errors as we run in autonomous or teleop.

...and yet, a few times at FLR, and a few times during practice, our bridge likes to reboot, killing our robot for about a minute.

Suggestions, anyone?
Mike Betts posted something very interesting that might be related to your problems: Is it the right plug?

http://www.chiefdelphi.com/forums/sh...ad.php?t=93657

Quote:
...I was a robot inspector at the Florida Regional last weekend. There were numerous complaints of momentary loss of communications but no single clearing house to vet all problems… I helped quite a few teams and came to the conclusion that no robot which used the power supply cable which came with the DAP-1522 radio had this issue. In fact, while working with one team, we succeeded in getting the DAP to be completely unpowered even though it appeared securely plugged in. We were able to restore power to the DAP by touching the power connector ever so slightly (virtually a feather’s touch). ...