Manual

• Next, configure the accelerometers, for which we move on to the next item "Accel
Calibration". Locate the copter immovably and strictly in the horizon (This will
further determine the stability in flight) and do not move copter during the calibration
at the level of the horizon. Press the lower button "Calibrate Level".
During calibration, the main LED on the autopilot will flash red and blue alternately, after
the completion, button sign will change to "Completed", which means that the
calibration is completed by level.
Next step is to calibrate the accelerometers along the axes of the copter. Place the
copter in front of you, copter nose directed from you. Press the top button "Calibrate
Accel" and the program will ask you to place the copter in the horizon. Place it
motionless in the horizon and press any key on the keyboard, then the program will ask
you to place the copter on all axes motionlessly as shown in the figure and each time
confirm the location on a certain axis by pressing any key
After successful calibration, "Calibration Successful" sign will appear
A good example of calibration: https://vimeo.com/56224615
It is important the copter stay immovable after pressing the key for each step.
The position of the horizon level is the most important factor to obtain the
correct offset factor, which your controller relies during the flight upon.