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    BMF055 vs BNO055

    elrhoul
    Community Manager

    Re: BMF055 vs BNO055

    Hi,

    There are differences on the features/performances, outputs and ODR (output data rate), tables below summarize some of the differences, you can also refer to the BSX lite integration guide, part of the BSXlite package available on our website for more information:

     

     Key Features

    BSXlite

    BSX (full library) in BHI / BNO

    Axis remapping

    ×

    Yes

    Offset correction

    Yes

    Yes

    Soft Iron Correction

    ×

    Yes

    Accelerometer calibration

    Yes

    Yes

    Magnetometer calibration

    Classic: figure-of-eight

    classic and advanced (fast)

    Magnetic distortion check

    Basic

    Advanced

    Gyroscope calibration

    Yes

    Yes

    9-axis orientation

    Basic

    Advanced

    Compass orientation

    Basic

    Advanced (adaptive filtering)

    Data fusion modes

    9-axis

    9-axis & 6-axis (IMU, M4G, eCompass)

     

    Outputs

    BSXliteBSX (full library) in BHI / BNO

    Virtual gyroscope (M4G)

    ×

    Yes

    Quaternions

    Yes

    Yes

    Orientation

    Yes (unfiltered)

    Yes

    Rotation matrix

    ×

    Yes

    Heading accuracy

    Yes

    Yes

    Linear acceleration

    x

    Yes

    Gravity

    ×

    Yes

    Gestures

    ×

    Yes

    Step counter

    Yes (from BMI160 HW)

    Yes

    Significant motion

    Yes (from BMI160 HW)

    Yes

     

    ODR

    BSXLite 

     BSX-Full 

    Accelerometer

    100Hz

    Multiple & Dynamic

    Magnetometer

    25Hz

    Multiple & Dynamic

    Gyroscope

    100Hz

    Multiple & Dynamic

    kxco
    Member

    Re: BMF055 vs BNO055

    Thank you for the tables, that is very helpful.  

    "ODR - BSXLite - accelerometer = 100Hz"

    Does that mean the fastest I can sample with BSXLite is 100Hz?  How fast can BSX sample?

    The datasheet for BMF055 is not very clear on how many samples per second I can read.  The only mention of 'Hz' I could find related to the accelerometer was filter bandwidth up to 1000Hz. 

     

    kxco
    Member

    Re: BMF055 vs BNO055

    It seems very strange how hard it is to find the sample rates.  It should be on front page of datasheet and flyer. 

    Where do I find the sample rates?

    elrhoul
    Community Manager

    Re: BMF055 vs BNO055

    Dear kxco

    as mentionned in the table the Max ODR for BSXLite is 100 Hz, For BSX3 (version part of BNO055) the max ODR is 200Hz 

    The ODR for raw sensor data (e.g accelerometers ) and BSX are not necessary to be the same. BSX may have a lower data rate than the raw sensor.

    A customer developed application gets the fused BSX output at a consistent data rate, even though the individual sensors may be configured at different data rates.

    Best regards

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