Eagle A3 PRO Installation 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
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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