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3 Appendix
Appendix A: LED status indicator
1．【Normal starting status】:
1)
With SD card: All three LEDs are on, and then go off in the order of red,
white and green.
2)
Without SD card: All three LEDs are on. After the red LED goes off. The
white one will go off after the red one flashes 5 times continuously. The
green one will go off at last.
2.【Normal status】:
Note:
1)
Sparkling
：
One time per second
2)
Flashing
：
Five times per second
3.【compass calibration mode】:
After completeness of the compass calibration
and all three LED flash for five seconds, please restart the system.
Color
Red
White
Green
Constantly
Off
Vertical axis
Calibration
±3º
○
4
Compass
Calibration
Constantly
On
Longitudinal
axis
Calibration
Not in proper angle
range
－
Note:
○
1
：
More than 7 satellites
○
2
：
5
～
6 satellite
；
○
3
：
Less than 5 satellites
○
4
：
±3º
：
When compass calibration, helicopter tilts from horizon within 3º
4. 【Error status】:
1)
The three indicators do not go off(for more than 5 minutes): Unknown
status.
2)
All three LEDs flash at the same time: the failure of attitude or controller
Color
Red
White
Green
Constantly Off
GPS Strong
○
1
Attitude Good
Manual
Sparkling
GPS Medium
○
2
Attitude Medium
Autopilot
Flashing
GPS Weak
○
3
Attitude Disorder
Signal Lost
Constantly On
Power Alarm
－
Compass Calibration
