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    BNO055 lost calibration

    BNO055 lost calibration

    Silvain
    New Poster

    Hi,

    We use the BNO055 in our marine robot, mainly for heading. We write the calibration at the begining and the CALIB_STAT is well at 255.

    Our problem is that after some time on the sea, we lose the calibration the system (the system flag drop to 0). We have the same problem when the robot pass under a dock. After we lose the calibration, we can not get again a good calibration.

    I read the topic (https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/BNO055-heading-drift-on-waves/m-p/7681#M...) and It's maybe the same problem.

    Do you have a idea why ?

    Thanks,

    Silvain

    6 REPLIES 6

    BSTRobin
    Community Moderator
    Community Moderator

    Hello Silvain,

    Do you use NDOF mode?

    Hello BSTRobin,

    Thanks for your answer,

    Yes, I try to use the mode NDOF_FMC_OFF and NDOF and the mose stable one is NDOF_FMC_OFF but so good with the same problem of lossing calibration

     

    Can I make a little UP for this problem ?

    BSTRobin
    Community Moderator
    Community Moderator

    Hello Silvain,

    You could refer this ticket: https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/BNO055-Calibration-Staus-not-stable/m-p/...

    And check current accelerometer, gyroscope, magnetometer calibration status.

     

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