9
DF801B USER MANUAL
2) Power indicator light
○
Charging
Indicator Light
Status Indication
▂ ▂ ▂ ▂ ▂ ▂ ▂ ▂ ▂
Blinking green
Charging
▂▂▂▂▂▂▂▂▂▂▂▂
Solid green
Charging completed
○
In operation
Indicator Light
Sound
Status Indication
▂▂▂▂▂▂▂▂▂▂▂▂
Solid green light
Null
RC is working normally
▂ ▂ ▂ ▂ ▂ ▂
Slowly flashing red light
B-B- B-······
Low battery warning,please charge RC immediately
▂ ▂ ▂ ▂ ▂ ▂ ▂ ▂ ▂
Quickly flashing red light
B-B-B-······
Serious low battery warning,RC will automatically turn off when
the sound stops
▂▂▂▂▂▂▂▂▂▂▂▂
Solid red light
Null
Serious error
▂ ▂ ▂ ▂ ▂ ▂ ▂ ▂
Double-flashing green light BB-BB-BB-······
If motionless for 5 minutes, operate the RC and the beep
sounds will stop.
3) Mode indicator description
Indicator Light
Sound
Status Indication
▂▂▂▂▂▂▂▂▂▂▂▂
Solid green light
/
GPS mode
▂▂▂▂▂▂▂▂▂▂▂▂
Slowly flashing green light
B-B- B-······
Altitude hold mode
3. About optical flow positioning system
Placed on the bottom of the aircraft, the optical flow positioning system senses the movements of the aircraft with the assistance of
the camera, and calculates the current altitude, helping to precisely locate the aircraft
’
s position.
When the aircraft is ready to take off, the optical flow positioning function cannot be activated due to the low altitude with the
aircraft
’
s front indicator light blinking slowly. After the aircraft has taken off and the conditions are satisfied, the optical flow
positioning function will automatically turn on and locate the aircraft
’
s position as to enable hovering with the aircraft
’
s indicator
light turning solid red.
Attention: In mid-flight, the optical flow positioning function cannot be activated if the aircraft
’
s front indicator light turns slow
blinking red. Please pay proper attention for a safe flight.
The optical flow positioning system is significantly affected by the intensity of the light and the surface texture of the physical object.
If the optical flow positioning system fails to work, its function of horizontal centered absolute positioning will be ineffective. In this
situation, please manually control the aircraft and pay proper attention whist flying the aircraft in the following scenarios.
Usage Scenarios
•The optical flow positioning system is applicable for altitude between 0.5 and 4 meters and suitable for either indoor or outdoor
windless environment.
•The aircraft
’
s indicator light turns slow blinking red when the system fails to locate position and turns solid red when the system
functions properly.
•Do not fly the aircraft if the app reminds you that the system is not able to function properly in the current environment (such as
badly-lit environment).
•Do not cover up the camera. Keep the camera clean and in good condition at all times.
•The optical flow gives information about object movement within the environment based on moving object detection on the ground
surface. Ensure the surrounding environment is brightly lit and rich in texture.
•The optical flow positioning system may fail to work in such conditions as water bodies, badly-lit environment or poorly-textured
Summary of Contents for DF801B
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