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Defective APM 2.0 with built in GPS?

Posted by S on August 1, 2012 at 9:56am
After following the instructions in the ArduCopter Wiki and reading through the forums on the DIY Drones, it appears that I received a defective unit.The APM 2.0 board functions properly in stabilize mode and alt_hold but is not receiving and information from the built in GPS. When connected throughthe mission planner software, is states "No GPS" even though the GPS daughter board led gives a 3d fix indication. (Solid Blue Led).I am using Mission Planner v.1.2.1 MAVlink 1.0 and Arducopter 2.7.1In Mission Planner under Terminal Tests in CLI Mode "Altitude" and "Compass" return valid results while the "GPS" command returns G!G!G!G!.G!G!G!G!. etc…Please advise and help to resolve this issue as soon as possible.

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Replies

  • S August 1, 2012 at 12:38pm
    My Fluke 179 is reading 4.987 VDC when powered by USB and 5.165 VDC when powered by the onboard UBEC.

    I get the 3D fix led on steady with both power supplies.
  • 3D Robotics
    Chris Anderson August 1, 2012 at 12:03pm
    Are you sure you're powering it at the recommended 5v? if you power it at too high a voltage (6v) the GPS won't work.
  • S August 1, 2012 at 11:52am

    Jason suggested that this might be a bad solder joint.

    Anyone know of a DIY for re-seating the GPS daughter board?

    Thanks in advance!

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