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Instruction Manual
Thank you for purchasing EAGLE series of flight controller. If any difficulties are encountered while setting up or operating your A3 Pro, please consult this manual
first. For further help, you may also visit our website at www.geeetech.com, or contact us via email
Features
Features
Features
Features
★ 3 Flight Modes can be switched between Normal
★ 3 Model Types supported: Normal
Normal
Normal
Normal Airplane
★ Specifically optimized to work for 3D flight;
★ Independent gyro gain adjustment for Aileron, Elevator and Rudder;
★ Basic setting functions including Stick Centering and Gyro Reversing;
★ Smaller and lighter, more compatible with small airplane;
★ Firmware can be updated from PC easily.
Attentions
Attentions
Attentions
Attentions
1. Make sure that your plane has been well installed before use;
2. In order to make the best use of your board, please read this manual carefully and install it step by step following the instructions below;
3. Set the trimming and sub-trim parameters to "0" for channels of aileron, elevator and rudder within your transmitter;
4. Verify
Verify
Verify
Verify that
that
that the
that
the mixing
the
the
mixing
mixing
mixing of of of of flying-wing
flying-wing
flying-wing (delta-wing)
flying-wing
Installation
Installation
Guide
Guide
Installation
Installation Guide
Guide
【 【 【 【 Step
Mounting】 】 】 】
Step
Step
Step 1: 1: 1: 1: Board
Board
Board
Board Mounting
Mounting
Mounting
The board need to be firmly mounted near the center of gravity of the plane, by the double sided tape provided. Please make sure the longer side of the board is
along with the heading direction. The board must be leveled with the body of the plane. Please refer to the illustration below.
【 【 【 【 Step
Wiring】 】 】 】
Step 2: 2: 2: 2: Wiring
Step
Step
Wiring
Wiring
Once installation is completed, please connect the channels of aileron, elevator, rudder and switch from your receiver to the pins marked "IN", pin 1 for aileron, pin
2 for elevator, pin 3 for rudder and pin 4 for the flight mode switch (You
bridging
bridging
bridging
bridging the
the
the
the board
board
board
board). Connect the servos to the pins marked "OUT", pin 1 for aileron servo, pin 2 for elevator servo and pin 3 for rudder servo. When the aileron is
operated by two separate servos, you should use a Y extension cable. Pay attention to the color of wires to avoid anti-plug.
【 【 【 【 Step
Step
Step 3: 3: 3: 3: Model
Step
Model
Model
Type
Type
Selection
Selection
Model Type
Type Selection
A3 Pro uses a 3-bit jumper (J1-2-3) for model type selection. Please match the type of your plane with Normal Airplane, Flying-wing (Delta-wing) and V-tail
according the table as shown below. Restart
No.
No.
No.
No.
Model
Model
Model Types
Model
Types
Types
Types
1
Setting Mode
2
Normal Airplane ▲
3
Flying-wing (Delta-wing)
4
V-tail
Notes: "0" represents "OPENED", "1" represents "CLOSED", "▲" is the default setting.
【 【 【 【 Step
Setting】 】 】 】
Step 4: 4: 4: 4: Gyro
Step
Step
Gyro
Gyro
Gain
Gain
Setting
Setting
Gyro Gain
Gain Setting
A3 Pro offers 3 fine tuning potentiometers to adjust the gyro gain for aileron, elevator and rudder (clockwise for increase, anticlockwise for
decrease). The best setting is determined by factors like fuselage size, weight and the power allocation used and so on. We recommend
you put the gain to a lower volume for the first flight, then fine tune to get the best result. The adjustment will take effect immediately without
a restart. For your safety, please don't adjust them until all the propellers become motionless.
【 【 【 【 Step
Step 5: 5: 5: 5: Switch
Step
Step
Switch
Switch
Switch Channel
Channel Configure
Channel
Channel
Assign a 3-position switch to the channel which connected to the pins "IN-4"
for switching the flight mode in flight. When use a 2-position switch, you can
only switch between Normal Mode and AVCS Mode. It will be set to Normal
Mode by default if the switch channel is not connected to the board.
However
However
However
However it it it it is is is is not
not
not
not recommended
recommended as
recommended
recommended
the
the
the
the reception
reception during
reception
reception
during
during the
during
the
the
the flight,
flight,
flight,
flight, which
flight
mode
flight
flight
flight mode
mode. When the board is operating, the indicator lights show the current flight mode, blue for normal mode, red for AVCS mode and both blue and red off
mode
indicates that the gyro has been disabled.
【 【 【 【 Step
Centering】 】 】 】
Step 6: 6: 6: 6: Stick
Step
Step
Stick
Stick
Centering
Centering
Stick Centering
To get the best result, you should apply the "Stick Centering" function to calibrate channel range following the Map of Setting Methods. For the first use of A3 Pro
www.geeetech.com
Normal
Normal Mode
Normal
Mode
Mode
Mode, AVCS
AVCS Mode
AVCS
AVCS
Airplane
Airplane
Airplane, Flying-wing
Flying-wing
Flying-wing
Flying-wing (Delta-wing)
(Delta-wing)
(Delta-wing) and V-tail
(Delta-wing)
(delta-wing)
(delta-wing)
(delta-wing) or or or or v-tail
v-tail
v-tail
v-tail has
Selection】 】 】 】
Restart the
Restart
Restart
the
the
the board
board
board to to to to activate
board
activate the
activate
activate
Jumper
Jumper
Jumper
Jumper Setting
J1
J1
J1
J1
J2
J2
J2
J2
0
1
0
0
Configure】 】 】 】
Configure
Configure
as
as the
as
the board
the
the
board
board
board might
might
might
might get
get
get
get interrupted
interrupted
interrupted
interrupted by
which
which will
which
will
will
will result
result
result in in in in the
result
the
the unexpected
the
unexpected
unexpected
unexpected
1 / 2
Version 1.0
Mode
Mode and Gyro
Mode
Gyro
Gyro
Gyro Off
Off
Off in flight;
Off
V-tail
V-tail
V-tail;
has
has been
has
been disabled
been
been
disabled
disabled
disabled within
within
within your
within
your
your
your transmitter
You
You should
You
should
should
should directly
directly
directly
directly connect
connect
connect the
connect
the selected
the
the
selected type
selected
selected
type
type
type.
Setting
Setting
Setting
J3
J3
J3
J3
OUT-1
OUT-1
OUT-1
OUT-1
0
0
-
0
0
Aileron Servo
1
0
Left Wing Servo
0
1
* Aileron Servo
No.
No.
Flight
Flight
Modes
Modes
No.
No.
Flight Modes
Flight
Modes
1
Normal Mode▲
2
Gyro Off
by
by
by
3
AVCS Mode
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Specifications
Specifications
Specifications
Specifications
Voltage Range: 4 - 6V DC
PWM Output:
50Hz/1520µs, 1020 ~ 2020µs
Full-Scale Range of Gyro: ±1000dps
Sample Rate of Gyro: 1KHz
Operating Temperature: -40 ℃ to 85 ℃
Dimensions:
30 × 40mm
Weight: 8 g
transmitter
transmitter as
transmitter
as
as A3
as
A3
A3 Pro
A3
Pro
Pro has
Pro
has
has
has already
already
already built
already
the
the
the throttle
throttle
throttle
throttle channel
channel to to to to ESC
channel
channel
ESC
Servo
Servo
Servo
Servo Connection
Connection
Connection
Connection
OUT-2
OUT-2
OUT-2
OUT-2
-
Elevator Servo
Right Wing Servo
Left Tail Servo
Switch
Switch
Position
Position
Switch
Switch Position
Position
ON
MIDDLE
OFF
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built
built these
built
these
these
these functions
functions in.
functions
functions
in.
in.
in.
ESC
ESC or or or or throttle
throttle
throttle
throttle servo
servo
servo
servo without
without
without
without
OUT-3
OUT-3
OUT-3
OUT-3
-
Rudder Servo
* Rudder Servo
Right Tail Servo
Pulse
Pulse
Range
Range
LED
LED
Pulse Range
Pulse
Range
LED
LED
< 1320µs
Blue
1520±200µs
Off
> 1720µs
Red
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