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Unread 07-01-2014, 09:20
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: [FTC]: Tetrix motor controller weirdness with 4 motors

F,
Everything you describe makes me think the fourth motor is drawing tons of current when used with the lift. If the old motor works and does the job, I think that is your fix. Of course you can swap the flag motor for a V2 motor and that should be ok if you are running low on motors. However, it is also possible your electrical layout is putting some electrical loss into the lines feeding from the battery out to the various other systems. My suggestion is to make the wires the largest gauge and the shortest possible run you can make. I am still confused as to why the NXT locks up during this event. I can only guess that the I2C data gets corrupted during the brownout.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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