IMU 10DOF calibration and accuracy

Baozhu · September 18, 2020, 1:05am

@Mitch_Faatz I read the code carefully, and the calibration is done through the following code.We are not sure if there is any other way to calibrate the sensor.

github.com

Seeed-Studio/Seeed_Arduino_IMU10DOF/blob/master/examples/IMU_10DOF_Test/IMU_10DOF_Test.ino#L286_L291


    mx = ((int16_t)(buffer_m[1]) << 8) | buffer_m[0] ;

    my = ((int16_t)(buffer_m[3]) << 8) | buffer_m[2] ;

    mz = ((int16_t)(buffer_m[5]) << 8) | buffer_m[4] ;



    Mxyz[0] = (double) mx * 1200 / 4096;

    Mxyz[1] = (double) my * 1200 / 4096;

    Mxyz[2] = (double) mz * 1200 / 4096;

}



void getCompassDate_calibrated ()

{

    getCompass_Data();

    Mxyz[0] = Mxyz[0] - mx_centre;

    Mxyz[1] = Mxyz[1] - my_centre;

    Mxyz[2] = Mxyz[2] - mz_centre;

}