Calibrate Compass - 3D Robotics pixhawk Quick Start Manual

SELECT FRAME TYPE (COPTERS ONLY)
For copter, select your frame orientation.

CALIBRATE COMPASS

Select the options to enable the compass; to allow automatic declination
calculation; and to specify Pixhawk. Select
and follow the prompts.
Show Me
videos demonstrating live calibration techniques at
Live Calibration to launch the wizard,
3dr.com/learn.