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cyoung / stratux

Aviation weather and traffic receiver based on RTL-SDR.
BSD 3-Clause "New" or "Revised" License
1.06k stars 363 forks source link

AHRS - What does "Error identifying IMU: remote I/O error" - mean? #871

Open davidkjackson54 opened 1 year ago

davidkjackson54 commented 1 year ago

  1. Stratux version:V1.6r1-eu028-us

  2. Stratux config:

    SDR

    • [ ] single
    • [X] dual

    GPS

    • [X] yes
    • [ ] no type:

    AHRS

    • [X] yes
    • [ ] no

    power source: direct power supply whilst testing

    usb cable:

  3. EFB app and version: (e.g., WingX Pro7 8.6.2) not applicable

    EFB platform: (e.g., iOS 9.2) not applicable

    EFB hardware: (e.g., iPad Mini 2) not applicable

  4. Description of your issue:

I have installed a GY-91 and set the pins to the Raspberry PI 3B correctly. I open up 192.168.1.10 and try to set AHRS orientation but get the error "Orientation failed' The log shows: Error identifying IMU: remote I.O error

but I can find nothing to indicate what this actually means and if there is a solution. Is there any documentation that might help on this error message?

securedirective commented 8 months ago

Did you ever find a solution? I'm getting this now too. It was working fine a few months ago, and I changed nothing at all. I'm wondering if it's actually a hardware failure, perhaps of the MPU9250 chip.

brightproject commented 5 months ago

Hello @cyoung and @jpoirier A little off-topic, but could you please tell me, Stratux uses data from MEMS sensors that are already prepared, i.e. is sensor fusion done inside the sensor or does the fusion happen in stratux code? For example here https://github.com/cyoung/stratux/blob/eec0b15d4a820167b8419b4d09b05c85f7896396/main/sensors.go#L168 As far as I understand, Stratux works with two types of sensors ICM20948 and MPU9250, and they seem to contain DMP - digital motion processor. I want to use lsm6ds3 or l3gd20 MEMS sensors. They unfortunately don't do sensor fusion, and so I'm wondering if there is some kind of magic in the stratux code? P.S. I program in C++, I understand a little Python, but I don’t quite understand the Go language.