Because Accelerometer sensor measure gravity, Home Location need to be set first. Please look the Setting Home location page.

This calibration should give a best accuracy so controller know his real orientation in space. Calibration adjust Accel bias but also Accel scales.

This calibration should be done while the controller is unmounted on frame, a controller case is preferred and allow accurate/stable positions.

The controller can be adjoined against a box for best position.

To initiate the Accelerometer calibration, press the Start button. Follow the onscreen instructions, orienting the controller as shown and pressing Save Position .

On every step when the position is saved, the controller need to be perfectly still !

After calibration is successful, save calibration results with Save button.

Accelerometers calibration result can be displayed on UAVOBrowser: accel_bias and accel_scale.