FeiYu Tech FY-91Q User Manual

Page 21

GuiLin FeiYu Electronic Technology Co., Ltd

GuiLin FeiYu Electronic Technology Co., Ltd www.feiyudz.cn E-mail: [email protected]

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d) Ensure you have selected mid or high timing for your ESC (if you are not

using FY ESCs).

GPS & COMPASS Module Set Up Debugging

1. The GPS & COMPASS Module contains an internal three-axis magnetometer.

This module senses the earth's magnetic field, and uses this reading to

accurately measure the aircraft direction of flight.

2. The magnetometer sensor is very sensitive to metallic objects and electric

fields. Keep such objects as far away from the module as possible.

3. Before each flight, it is best to do a

magnetic

field calibration. With practice it

is very easy to do (takes only 20 seconds).

Magnetic

field calibration enables the GPS & Compass Module to calibrate

for the environment in which it is installed.

Magnetic

field calibration should also be done if new equipment is installed

which may affect the magnetic field around the aircraft.

Magnetic

field calibration process:

a) Place the aircraft on flat ground.

b) Continuously change (toggle) the flight modes between Mode 1

(Stabilized Mode) to Mode 2 (Hover Hold) six times:

(1) balance mode -> Hover Hold – (2) balance mode -> Hover Hold –

(3) balance mode -> Hover Hold – (4) balance mode -> Hover Hold –

(5) balance mode -> Hover Hold – (6) balance mode

c) Observe the blue LED go OFF after you toggle 6 times. This indicates the

FY-91Q has entered the

Magnetic

Field Calibration Mode.

d) After the Blue LED goes OFF, move the aircraft slow and steady in a

clockwise rotation one and a half times. The rotation should be done

slowly, taking approximately 15 seconds to complete. If you do it too fast,

calibration will fail (Blue LED will not light up), and you have to do it all

over again.

e) After this rotation, the blue LED will light up again, indicating Field

Calibration is complete.

f) Proceed to into GPS Detection.

GPS Detection (Home Lock)

a) GPS is required to enable autopilot flight positioning.

b) Ensure you are outdoors to maximize GPS satellite detection