NAME

       RTIMULibCal - Calibration tool for the Sense HAT IMU

SYNOPSIS

       RTIMULibCal [filename]

DESCRIPTION

       RTIMULibCal is a command line calibration tool for the Raspberry Pi Sense HAT IMU. It has no command line
       options, but does provide an interactive interface through  which  the  IMU  can  be  calibrated.  It  is
       essential  to  calibrate the IMU's magnetometer (at the very least) or else poor results will be obtained
       when querying the device's orientation (or “pose”).

       The calibration data obtained from this tool will be output to filename which defaults to  “RTIMULib.ini”
       if omitted.

       When  started,  a  menu  will  be  presented  providing  options  to  calibrate  the  magnetometer or the
       accelerometer within the IMU (or select “x” to exit):

              Options are:

                m - calibrate magnetometer with min/max
                e - calibrate magnetometer with ellipsoid (do min/max first)
                a - calibrate accelerometers
                x - exit

       Given that calibration typically requires that the HAT is rotated through numerous  orientations,  it  is
       recommended  to  perform  this  on  a  Raspberry  Pi  with a minimum number of cables attached to it. For
       instance, you may wish to set up WiFi connectivity, and operate the calibration application over  an  SSH
       connection  so  that you can remove keyboard and monitor cables from the Pi, leaving just the power cable
       necessary.

       Please note that the magnetometer ellipsoid calibration option (“e”) requires GNU Octave to be installed.

SEE ALSO

       RTIMULibDrive11(1)

                                                                                                  RTIMULibCal(1)