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Unread 16-02-2009, 12:10
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Jon Stratis Jon Stratis is offline
Electrical/Programming Mentor
FRC #2177 (The Robettes)
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Re: Power for system check

Having a battery attached to your OI can be extremely useful. Last year, we had a 12V battery hooked up to a custom circuit board that would power the OI and the USB chicklet (at appropriate voltages) that would last about an hour (to be unplugged from the OI during competition). Unfortunately, at competition we ran into <R106>, which stated that any battery hooked up to the USB Chicklet had to be equivalent to the backup battery and had to swap our battery out.

This year, i don't think we'll run into that same problem. There's <R80> (nothing connected to the power connector during a match) and <R81> (anything connected to the USB or analog/digital IO ports can only be powered from those ports), but neither of them prohibit having a battery there if it's not attached, and this year the battery is only attached to the Driver Station when we need it.
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