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Re: Unexplained loss of motor power while valves work.
Digital Sidecar has metal shavings (or something else) shorting out the 5v line. When shorted (or overcurrent), the 5v supply shuts down to protect itself from destruction.
Basically every output device on the DSC requires 5v to power at least the enable circuit, so without it nothing can be enabled.
The solenoids work since they are on the solenoid bumper, which is completely separate from the digital sidecar.
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Kettering University - Computer Engineering
Kettering Motorsports
Williams International - Commercial Engines - Controls and Accessories
FRC 33 - The Killer Bees - 2009-2012 Student, 2013-2014 Advisor
VEX IQ 3333 - The Bumble Bees - 2014+ Mentor
"Sometimes, the elegant implementation is a function. Not a method. Not a class. Not a framework. Just a function." ~ John Carmack
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IMO the main idea behind FIRST is for the mentors and students to work together to produce a machine that the students could never have produced on their own. - Tim Sharp [more] 
12-04-2011, 10:11
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