APM 2.0 wont power up from ESC's, only USB.

Last night I was configuring my new quadcopter and somewhat out of the blue the board wouldn't power up anymore.  The only thing I did wrong was have my plug from the receiver to Input 5 the wrong way but it still powered up while that was wrong.  It

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Boat navigation with Adrupilot

Hello,I'm extremely new to this but I've been looking for a new autopilot system for my sailboat and when I came across this I thought it might be a fun project but I'm confused on some items so I thought I'd write and try to clear some things up.Fir

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