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)