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Unread 19-02-2016, 16:18
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Alan Anderson Alan Anderson is offline
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Re: Losing connection when ramping over defenses

Quote:
Originally Posted by BigJ View Post
The only consistent thing we could see in our DS logs that was bad (as far as I know, which is not a lot ) is that a bunch of "5V brownouts" happen. We aren't really seeing the battery voltage on the DS go that low at all, and they also seem to pop up when driving normally, so I am unsure if that is a normal thing to see happen every so often while driving. It might also be worth noting that we don't actually have any 5V stuff wired up to the roborio at the time.
Seeing "a bunch of 5V brownouts" suggests that you have debris shorting the 5 volt rail on the RoboRIO. It might not even be on the inside of the housing. Look very closely with a bright light at the recessed areas around the PWM, DIO, and Analog pins. You might find a nearly invisible strand of wire, or a crumb of metal, or a thin film of aluminum dust, that sporadically connects the 5V and GND pins together.