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Re: System Battery Voltage is wrong
Quote:
How do I measure the battery voltage using the Analog Breakout?
• Use a shunt (jumper) to connect the outer two pins of the “AI8 Select” connector
• Battery voltage is reduced to ~40% of its actual value by a 680/1k voltage divider and
filtered by a 0.1uF capacitor.
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From Control system COMPONENT DATASHEETS Page 24
Sounds like you are displaying 40% of your battery voltage (the actual voltage at the divider on Analog in 8). You program might not be converting this value back up (I have never checked where it does this). Try running a default program.
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Electrical & Programming Mentor ---Team #365 "The Miracle Workerz"
Programming Mentor ---Team #4342 "Demon Robotics"
Founding Mentor --- Team #1495 Avon Grove High School
2007 CMP Chairman's Award - Thanks to all MOE members (and others) past and present who made it a reality.
 Robot Inspector
"I don't think I'm ever more ''aware'' than I am right after I burn my thumb with a soldering iron"
Last edited by The Lucas : 03-02-2009 at 18:14.
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Holy cow! Five years in FIRST and it only gets better!
Skyway has supplied wheels to FIRST for ten years.
Ten years ago Dean called Ken for wheels. Ken said yes.
Man, we love helping you guys and gals get good wheels. ;)
Bart at Skywaywheels.com - SkywayWheels [more] 
03-02-2009, 18:08
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