PNI Digital Compass Driver

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With the new and latest version I have timeout problems with my PNI Prime. I also has a 0.5s timeout for almost all commands, but it seems to be actually more. This is the exception raised:

 File "pni_prime_imu.py", line 331, in <module>
    main()
  File "pni_prime_imu.py", line 327, in main
    raise e
pni_dev.TimeoutException: Did not recv frame_id (5,) within time limit.

Plesase, note that I've only changed the name of the driver to pni_dev, and create my own wrapper on top of it. Everything is the same. I increase the timeout to 1s in a >24h experiment, but at some point it wasn't enough.

Do you have any idea that could explain this behaviour?

Thanks in advance, Enrique

I also have this exact same compass. Has anyone made progress towards a solid driver for this device?

Thank you, Tim

Hi,

I can say it also works for the PNI Prime model.

For the source I downloaded (a few days ago), you might detect some problems with the (let's say) "k" and no "k" var names if you ask the device for more "components", e.g. accelerometer and magnetometer readings. It's straightforward to correct though, and maybe it's already fix in the repo (but didn't check, don't know). Let me know if you want to know the details.

UPDATE #1:

    Datum     = namedtuple('Datum', [
        'Heading', 'Temperature', 'Distortion', 'CalStatus',
        'PAligned', 'RAligned', 'IZAligned',
        'PAngle', 'RAngle', 'XAligned', 'YAligned', 'ZAligned'
    ])

instead of

    Datum     = namedtuple('Datum', [
        'Heading', 'Temperature', 'Distortion', 'CalStatus',
        'PAligned', 'RAligned', 'IZAligned',
        'PAngle', 'RAngle', 'KXAligned', 'KYAligned', 'KZAligned'
    ])

Only the 'K' has to be remove, for the last three items.

UPDATE #2:

I've detected some problem using your driver with my PNI Prime. When I stop the driver the sensor is left in a state such that when I re-start the driver again it fails. Then, I re-start again and it works. See below the call stack output (summarized):

    compass.setConfig(Configuration.kMountingRef, Orientation.kOrientationSTD0)
  File "pni_dev.py", line 311, in setConfig
    self._recvSpecificMessage(FrameID.kSetConfigDone)
  File "pni_dev.py", line 260, in _recvSpecificMessage
    raise IOError('Response has unexpected frame id: {0}.'.format(frame_id))
IOError: Response has unexpected frame id: 5.

Have you found this problem too? I've also tried to put a powerDown at the end. It only happens that the error changes. And, at the very beginning, I've also put powerUp and stopStreaming, to ensure config mode ---I guess. But still the same.

Thanks for this great contribution, mkoval! EnriquepowerDown

Hello, I have the exact same compass and was wondering if you ever got those drivers done? Are you will to share them?

Thank you.