Member #205257

Member Since: February 22, 2011

Country: United States

  • Product SEN-10321 | about 3 years ago

    Magnetometer and Accelerometer MUST be calibrated first (i don’t know about Gyro) Calibration is calculating BIAS and GAIN, that is a Matrix and a Vector of parameters, to “sphericize” and translate the ellipsoid of the RAW value you get from the board.
    You can find some info in this PDF (ST):
    http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/APPLICATION_NOTE/CD00269797.pdf
    http://www.st.com/internet/analog/product/250145.jsp
    The following code if for Matlab, but works also with Octave (free)
    THIS IS NOT my code, but i don’t remember the link of
    the author (sorry) :
    http://rapidshare.com/files/449329308/MgnCalibration.zip

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