PreArm Compass Offsets too high

Posted by Justin C on September 21, 2016 at 11:49am

Every time I configure the compass successfully, I get the message "PreArm: Compass Offsets too high". The most recent values are X:-144, Y:-261, Z: 586. This seems to be causing an issue with the Motors. After dozens of tries of either "sudo ~/ardupilot/libraries/AP_HAL/examples/RCOutput/RCOutput.elf" or Ardupilot motor test/calibration have only succeeded twice. These problems seem to be interconnected in that in both cases I cannot get the motors to turn on.

There are at least a half dozen of us doing BBBMini builds in our local group, and so far no one has gotten past this point yet (although only a few of us are at the RCOutput test).

Any suggestions?

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Replies

  • Developer
    Bill Bonney September 21, 2016 at 5:53pm
    Go to http://discuss.ardupilot.org there's some talk about compass calibration inconsistencies
  • Vinicius Juvinski September 21, 2016 at 2:41pm

    Hi Justin,

    I have the same problem, mainly when using external compass, I'm using a secondary IMU too, the external compass ( I tried to use roll 180 as APM2, or 5volts powered with level converters) but external compass, no way. 

  • Justin C September 21, 2016 at 1:52pm



    Justin C said:

    3702302886?profile=originalMirko,

    Using Turnigy 9x with Arduino.

    RCInput works, as does Sonar, Barometer, and Inertial Sensor. GPS is not yet connected.

    Motors and electrical connectors have been tested successfully separately.

    Justin

    Mirko,

    As an aside, most of my tests have been with Mission Planner's Motor Calibration. However, there were a couple of times that the motor's did cycle successfully using RCOutput.elf, although after trying to do the calibration with Mission Planner, I understand why that type of testing is unreliable.

    The main issue is that there is the "Compass Offsets too high" issue that is preventing the arming.

    Justin


    Mirko Denecke said:

    Hi Justin,

    can you post a picture of your setup please.

    Regarding RCOutput.elf, this file can not be used to test / calibrate the motors / escs.

    Regards

    Mirko

  • Justin C September 21, 2016 at 1:44pm

    3702302854?profile=originalMirko,

    Using Turnigy 9x with Arduino.

    RCInput works, as does Sonar, Barometer, and Inertial Sensor. GPS is not yet connected.

    Motors and electrical connectors have been tested successfully separately.

    Justin


    Mirko Denecke said:

    Hi Justin,

    can you post a picture of your setup please.

    Regarding RCOutput.elf, this file can not be used to test / calibrate the motors / escs.

    Regards

    Mirko

  • Mirko Denecke September 21, 2016 at 12:11pm

    Hi Justin,

    can you post a picture of your setup please.

    Regarding RCOutput.elf, this file can not be used to test / calibrate the motors / escs.

    Regards

    Mirko

This reply was deleted.