TTA M8A20A1 User manual

Beijing TT Aviation Technology Co., Ltd.
www.ttaviation.com
M8A pro Manual

Beijing TT Aviation Technology Co., Ltd.
www.ttaviation.com
M8A20A1 structural diagram
No.
Component
No.
Component
1
CCW Arm assembly
9
Edge nozzle assembly
2
CW Arm assembly
10
Motor
3
Landing gear assembly
11
CCW Propeller
4
Water tank
12
CW Propeller
5
Pump assembly
13
GPS antenna
6
Holder assembly of spraying rod
14
Dome
7
Spraying tube
15
Up plate
8
Middle nozzle assembly
16
Arm joint jacket

Beijing TT Aviation Technology Co., Ltd.
www.ttaviation.com
Catalog
1.Use Instruction.......................................................................................................................1
1.1 Safety Instruction....................................................................................................... 1
1.2 Pesticide Usage......................................................................................................... 2
1.3 Inspection....................................................................................................................3
1.4 Environment................................................................................................................4
1.5 Operation.....................................................................................................................4
1.6 Compass Calibration Requirements.......................................................................5
2. Product Introduction............................................................................................................ 6
2.1 Flying Parameters......................................................................................................7
2.2 Copter Parameters.................................................................................................... 7
2.3 Packing List.................................................................................................................9
3.Preparation Before Take Off..............................................................................................10
3.1 Device Installation................................................................................................... 10
3.1.1 GPS Antenna Installation............................................................................10
3.1.2 Arm Installation............................................................................................. 11
3.1.3 Propeller Installation.................................................................................... 11
3.1.4 Sprayer Supporter Installation................................................................... 12
4. Charger Instruction............................................................................................................ 14
4.1 Product Application..................................................................................................14
4.2 Product Features..................................................................................................... 14
4.3 Main Technical Parameters and Application Demand.......................................14
4.4 Interface Indicator.................................................................................................... 15
4.5 Function and Operation Instruction...................................................................... 16
4.6 Attention.....................................................................................................................16
5. App Setting of Copter........................................................................................................ 16

Beijing TT Aviation Technology Co., Ltd.
www.ttaviation.com
5.1 Software Configuration........................................................................................... 16
5.2 Parameters Adjustment.......................................................................................... 17
5.2.1 Remote Controller Calibration....................................................................20
5.2.2 IMU Calibration............................................................................................. 20
5.2.3 Compass Calibration................................................................................... 21
5.2.4 Flying Parameters Adjustment................................................................... 22
5.2.5 Low Voltage Protection................................................................................23
5.2.5.1 Low Voltage Protection Settings.................................................... 23
5.2.5.2 Alarm Voltage Settings.....................................................................23
5.2.5.3 Voltage Calibration Settings............................................................23
5.2.5.4 Low Liquid Protection.......................................................................24
5.2.5.5 Spraying Mode.................................................................................. 24
5.2.6 About Interface..............................................................................................25
5.3 Route Establish........................................................................................................ 25
6. Remote Controller..............................................................................................................30
6.1 Function Description............................................................................................... 30
6.2 Bind............................................................................................................................ 31
6.3 RC connection and Device Helper.APP Introduction........................................ 31
6.4 Video transmitter Introduction................................................................................32
6.5 Hand Mode Settings Introduction......................................................................... 33
6.6 Remote Controller Antenna....................................................................................34
7. Function Control.................................................................................................................35
7.1 Flight Mode............................................................................................................... 35
7.2 AB Mode....................................................................................................................36
Appendix Implication of Indicator Light...............................................................................39
Disclaimer................................................................................................................................ 40

Beijing TT Aviation Technology Co., Ltd.
TTA M8A pro Use Instruction
1
1.Use Instruction
1.1 Safety Instruction
The product is not suitable for the ones who are less than eighteen or who do not have
full capacity for civil conduct.
The product have bigger fuselage size, high speed rotary and strong flight dynamics.
At runtime have a certain dangerousness . Not in accordance with the requirement
operation and usage will cause to potential danger and hurt.
When using this product, please keep away from airport, railroad, high speed road,
high buildings ,electric wire and other dangerous environments.
When using this product, please keep away from mobile phone base stations, high
power transmitting equipment, and other high electromagnetic interference
environments.
When using this product，please keep away from army and kinds of manned craft flight
area.
Don’t use this product in rain, thunder, sandstorm, fog snow ,high wind ,and low
temperature and other bad environments.
When flying in more than three kilometers. Environmental factors can lead to flight
performance degradation, please care of using it.
When operating this product fly in low sky .Please always keep UAV and people &
animals in a safe distance of ten meters
When using this product in desert area, please keep UAV within the range of
operator’s eyes

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Don’t hover or fly over the crowd, Don’t be delight in scaring others.
When it is close to the crowd ,please land this UAV as soon as possible and guide
people to keep and avoid potential accident.
Don’t operate it in the area of children playing.
If not in the extreme necessary condition, please do not power off when flying in the
air.
You can not fly it you are in drinking , tied, drugs, physical ,discomfort, etc. .
Please inspect it before using very time, including but not limited to parts of fastness,
organism and propeller of cracks, and abrasion ,battery ,the effectiveness of light.
When error happens, please stop using immediately and replace the corresponding
parts.
Abnormal working state of the UAV maybe happen accidentally, don’t open the
propellers and forcibly fly with wrong.
Do not try to prevent the moving parts while working.
1.2 Pesticide Usage
All pesticides are poisonous. Please be careful and work strictly according to the
safety instructions of pesticides.
When dispensing, please use clear water. If not, will cause jams mesh of impurities. If
it is blocked, please clear it before reuse
When dispensing , please note that liquid sparks and the pesticide residue in fuselage
will be harmful to human body.
When dispensing, please pay more attention and use protective tools, and do not let
body directly touch with the pesticides; After pesticide spraying, please clear your skin,

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copter and remote control.
When using pesticide, there will be interaction between different pesticides , user
should clear cartridge or keep a certain interval time。
Spraying shall be carried out in windless sunny day, don’t spray under high
temperature at noon. While breezing, the operator should be standing above the wind
and spraying; do not work when wind is four.
When spaying ,if you feel uncomfortable ,headache or dizzy, please leave the site at
once and rest. If once severe symptoms occur, immediately be sent to hospital.
Pesticide effect and the solution concentration, spray rate ,copter high from
crops ,wind direction, wind speed and so on are close related. When using pesticide
should consider the above factors, to achieve the best effect. Please make sure that
do not damage the human beings and animals and surroundings during the process of
sprayings.
When using pesticide , do not pollute river and drinking water
1.3 Inspection
Before flying, ensure the battery is enough
Ensure all the parts are installed firmly, and all the screws are tight as required.
Ensure all the wires are correctly linked.
Ensure all parts goes well. If it is broken or aging, please replace timely.
Before flying, carefully check the propellers installation direction 、rotation direction,
control and others.
Ensure all the propellers are fine, no any scratch and tightly installed.
Ensure the sprayer is fluent without any clogging and work normally.

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1.4 Environment
While flying, please ensure the drone away from the crowds, dangerous goods, high
buildings, high-voltage wires and others. Please fly the drone in a dedicated space.
Please ensure the drone fly within the operator’s eyesight.
The drone working temperature is between 0℃-40℃.
Ensure the drone fly within the permit of local law and regulations.
To fly the drone safely as required, please fly it within in the height of 50 meters. If it
has local flying height limit within 5ometers, please make sure obey the related
regulations.
1.5 Operation
Please ensure the multi-rotor drone flying height is within 8 meters, except the special
requirements.
Before remote control calibration、hardware update, parameter setup, please remove
the propellers and avoid the potential moving suddenly.
Remove the battery if it does not fly, to avoid flying it when touching the remote control
once.
Please remove the batteries once landing. Do not move the drone when it is in power.
Do not touch the joy stick mistakenly, and prevent start the drone.
When it is powered, please stand in the safe distance of above 10 meters.
Ensure the propellers completely stop and power off.
Please switch it to the manual operation mode when errors happen. When the manual

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TTA M8A pro Use Instruction
5
operation mode does not work, please press the emergency bottom. Please keep
away from the crowd.
When the battery is damaged, please ensure it is stored in the disposal area and avoid
spontaneous combustion. In order to protect environment, please don’t throw batteries
randomly. And consult the maker about the proper disposal method.
During the flight, don’t fly overload and do not cause any potential dangers.
When low battery is warning, please return as soon as possible.
Ensure that the remote control and battery is enough, to ensure that firmware has
been updated to the latest version.
Ensure flying sites outside of the restricted areas and is proper for flight . .
Please make sure do not fly or operate the drone when you are drunk or with medicine
limitation.
Be familiar with the remote control operation & each flight mode, and ensure you
know how to operate the control condition.
User shall know and obey all the law and regulations in flying location.
1.6 Compass Calibration Requirements
Compass has to be calibrated before using the first time. If else, it cannot work and will
affect flying safety. Calibration tips:
Please do not calibrate it in the place close to the high-magnetic field or big metal
materials, such as high-voltage, magnet, parking lot, concrete iron building, etc.
When calibrating, please do not bring the magnetic materials, such keys and
cellphone.
If it is calibrated indoor, please do not re-calibrate it outdoor. It prevents that the two

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TTA M8A pro Use Instruction
6
magnet differences cause the potential flying data errors.
Magnetic field location is different, please make sure re-calibrate when it changes to
the place far away from the previous one.
2. Product Introduction
M8A20A1, the multi-rotor UAV, is the most economic integrated solution for all the
agriculture spraying services,the product series payload is up to 20kg.This UAV use
carbon fiber material,the saving weight could be used to payload. The big power
brushless motor guarantees the sensitiveness and flexibility. The Lipo batteries guarantee
the power supply and easy to repair and maintain. Various spraying tests proves the best
performances of this UAV for many years.

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2.1 Flying Parameters
2.2 Copter Parameters
Frame
Frame
Diagonal Wheelbase
1630mm
Arm Length
632mm
Unfolded Height
600mm(top shield 200mm
not included)
Folded Height
710mm(top shield 200mm
not included)
Folded Width
570mm
sprayer supporter length
3180mm
Sprayer Distance
500-550mm(adjustable)
dynamic
system
Motor
Motor Model
TTA8017-2
Stator Size
75mm
KV
120KV
Max Thrust
14KG
Max Power
2300W
Weight
640g
Copter weight
(without battery)
18 KG
Max pitch angle
≤35°
Standard take off weight
46 KG
Best working speed
4-6m/s
Max effective take off weight
48 KG
Max working speed
10m/s
Max thrust weight ratio
2.43(take off
weight 46Kg)
Working time
10-15min
/sortie
Dynamic battery
16000/17000mAh
*4pcs
Max ascending
speed
5m/s
Max power consumption
18400W
Max descending
speed
3m/s
Hovering power consumption
5400W
Max flying speed
15m/s
Hovering time
empty≥25min
full≥6min
Recommended
working environment
temperature
10-35C°
Hovering accuracy
horizontal±1.5m
vertical±0.5m
Max wind resistance
12m/s
Working height
2-4m
Max flying altitude
3500m
Max rotation angle
360°
Best reserving
temperature
10-25C°

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ESC
Max Continuous Working Current
50A
Max Peek Current(3s)
120A
Max Allowed Voltage
14S LiPo
Working Voltage
12S（44-50.4v）
Working Pulse Width
1000-2000us
Compatible Signal Frequency
50-400Hz
Drive PWM frequency
400Hz
Propellers
Material
Carbon fiber
Diameter /Screw pitch
3080(length 760mm)
Weight
110g
Battery
Capacity
16000mAh/17000mAh
spraying
system
Water
Tank
Payload
20L
Sprayer
Model No.
pressure type(hollow cone)
Quantity
6 pcs
Sprayer Diameter
0.67mm
Spraying Speed
4--6m/s
Spraying Volume
1.8--2.2L/min
Spraying Width
5--8m(up to height)
Spraying Droplet Diameter
80--200μm(adjustable)
Remote
controller
Remote
controller
Type
R4
Working frequency
2.4Ghz
Signal effective distance(without
interference and block)
1.2KM
Battery capacity
3.7V,4000mAh
Charging type
DC 5V, 2A
Working environment temperature
0-40C°
Reserving environment
temperature
10-25C°
Best charging environment
temperature
10-25C°

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2.3 Packing List
Name
QTY
Image
Fuselage
1pcs
Spraying rod assembly
2 pcs
Dome
1 pcs
Propeller
4 pair
T8FG remote controller
1 pcs
M8A20A manual
1 pcs
A4 adhesive sticker print paper
1 pcs
Spare part
Tools box
1pcs
TTA spanner
1 pcs
LiPo battery
charger
1 pcs
Electric quantity
indicator
1 pcs
spare screw
M3*8 cylinder head 5 pcs
M3*8 half round head 5 pcs
M4*60 cylinder 2 pcs
M4*65 positioning bolt 2 pcs
aviation box
optional

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3.Preparation Before Take Off
It’s very important to the steps of before take off,please check carefully and ensure the
copter qualified before take off.
3.1 Device Installation
Parts and lines have been installed well before copter sending out of the factory,please do
not change any position of part and line and follow the following steps is enough to work.
3.1.1 GPS Antenna Installation
Step 1:erect GPS supporter,be careful that GPS supporter is vertical to the horizontal.
Step 2: tighten the nut on the bottom.
Figure 3-1 GPS installation effect picture
16000mAH/17000mAH
battery
optional
Dual channel 6s charger
optional
Four channel 6S
optional

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3.1.2 Arm Installation
Use a M4*65 bolt to connect arm and frame and then tighten the bolt and operate the
spanner. The other arms are same step.
3.1.3 Propeller Installation
Step 1: just the propeller type,CCW or CW.
CW
CCW
Figure 3-3 propeller type
Bolt M4*65
connector
Spanner
arm
Effective picture
Figure 3-2 arm installation

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Step 2: propeller installation,propeller first,then gasket,tighten 2 pieces of M3*14
bolt(M1,M3,M5,M7 is CCW,and M2,M4,M6,M8 is CW).
Figure 3-4 propeller installation effective figure
3.1.4 Sprayer Supporter Installation
Step 1: connect the sprayer and its connector,see figure3-5.
Step 2: pin the diagonal member and pin it through.
Figure 3-5 Sprayer supporter connection effect picture
Bolt M3x14(2 pcs)
Gasket
Motor
Propeller

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Step 3: connect pipe(5mm*8mm) between pump outlet and sprayer,and the other sprayer.
Pressing the connector when loosing the pipe.
Press direction
connector
Figure 3-6 pipe connection in sprayer supporter
Figure 3-7 pipe connection in pump outlet
Step 4: repeat step 1 to step 3 for the other sprayer supporter.

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4. Charger Instruction
4.1 Product Application
LiPo 6s balance charging
4.2 Product Features
1. balance charging
2. quick charging
3. input and output reverse polarity protection
4. Low static power
4.3 Main Technical Parameters and Application Demand
1. Input voltage: AC 220V
2. Max charging current: CH1:20.0A;CH2:20.0A
3.Max charging power:CH1:500W;CH2:500W
4. Average output voltage:CH1:25.2V;CH2:25.2V
5. Max output voltage:27.0V
6.Max balance current:400mA
7.Max static power:2400mW
8.Display mode:LED display
9. Support battery cell number:6S
10. Charger working temperature:0～40℃

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4.4 Interface Indicator
Charging
indicator
Output
status
indicator
CH1
CH2
Start
Dual channel6S-20A charger
Blance port
Charging
status
Charging
indicator
status indicator
Note
gree
n
red
LED
1
LED
2
LED
3
LED
4
Idle
charging
Note 2
full
charging status:good,balance well
charging status:common,balance commonly
charging status:poor,balance poor
abnormal
charging module abnormal
balance port connection abnormal
input voltage abnormal
output voltage abnormal,check output
connection with battery
single cell high voltage alarm
battery inspection fail,check balance port and
output port
no charging current,check output connection
Note1: ON OFF flash
Note2: :LED1-LED4 flash in turn circularly,means charging in real
time
Fast cycle speed:big electric current change
Slow cycle speed:charging near full
Charging
indicator
status
indicator

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4.5 Function and Operation Instruction
1.Connect with power,leave switch at OFF position,charging channel outside is
close,charging indicator is OFF.
2. Connect with power,leave switch on external power,external power supply
open,charging indicator is green,charging channel is OFF.
3. Connect with power,press start button for 2s,charging channel is open,charging
indicator means current status,charging status is red ON.
4.Press start button during charging process and exit charging mode;press start
button when abnormal which means exit abnormal status.
5. It is suggested to charge for a while if not balanced well, which can prolong the
lifetime of the battery.
4.6 Attention
1.Over low or high charger input voltage may lead to abnormal status or damage.
2. Please observe the instruction strictly.
5. App Setting of Copter
5.1 Software Configuration
1. Please install the GCS software.
2. After GCS installation,the label will be appeared as figure 5-1.
TTA-M8A pro support Android 4.0 or above
3. Open GCS,enter into the start page.
4. Enter into the main page ,see figure 5-2.
Figure 5-1