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16. Calibration of position sensors
If the quadrocopter does not hover steadily in one spot but is always flying in one direction, the trim may need cor
-
recting. However, if the trim has to be adjusted significantly, it may be necessary to re-calibrate the position sensors
in the model.
Proceed as follows:
First, switch on the transmitter and then the quadrocopter. The trims must all be set to the middle position.
Then place the quadrocopter on a flat, horizontal surface.
Move the two joysticks on the transmitter (see Figure 26,
no. 3 and 13) to the bottom right position and hold the two
joysticks in this position.
The LEDs in the transmitter and in the quadrocopter start
to flash quickly.
After a short time, the transmitter emits a beep and the
transmitter LED is permanently on again.
Now, return the joysticks back to the centre position. Short-
ly afterwards, the LEDs in the quadrocopter light up again
permanently.
The calibration is complete.
Check with a test flight whether the quadrocopter is still
showing a strong tendency to fly in a particular direction.
Small tendencies can be offset by trimming. If required,
repeat the calibration process.
Figure 26
