Ultimate Reliability
Infinite Possibility

Combining ultimate reliability with accurate flight control, the brand-new A3 series of flight controllers is ideal for demanding industrial and cinematic applications where reliability and customization are essential.

Watch Intro Video


WeightA3 Pro: 386g
A3: 186g
Power ConsumptionA3 Pro: Max. 16W
A3: Max. 8W
SizeController: 64mm x 42mm x 19.5mm
PMU: 51mm x 34mm x 13.5mm
External IMU: 34mm x 26.5mm x 20mm
GPS-Compass Pro: 61mm (diameter) x 13mm
LED: 27mm x 27mm x 8mm
Built-in Functions
  • Built-in IMU
  • Intelligent Flight Modes
  • Low voltage protection
  • DJI Smart Battery Protection
  • Motor overload detection
  • External SBUS receiver
  • Lightbridge 2 receiver
  • 8 function channels (including 4 configurable direction channels)
  • SDK

Flight Performance

Maximum Wind Resistance<10m/s
Max Yaw Angular Velocity150 deg/s
Max Pitch Angle35°
Ascent/DescentAscent: 5m/s
Descent: 4m/s


Onboard SDK

Extending Function

PWM I/O PortsF1-F4 ports for output F5-F8 ports for I/O function
iOSD Data StorageBuilt-in data recorder
Ground StationIt can be realized in DJI GO APP With Lightbridge 2, and in PC Ground Station with Lightbridge 2 or DATALINK PRO.
Intelligent Flight Modes(with Lightbridge 2) Point of Interest, Waypoints, Home Lock and Course Lock.
Remote Parameter AdjustmentIt can be realized in DJI GO APP With Lightbridge 2
PC AssistantDJI ASSISTANT 2, support simulator

Hovering Performance

Hovering Accuracy
  • Vertical: 0.5m
  • Horizontal: 1.5m
  • Vertical: 0.02m + 1ppm

  • Horizontal: 0.01m + 1ppm


Supported Multi-rotorQuadcopter: I4,X4;

Hexacopter: I6,X6,Y6,IY6
Octocopter: X8,I8,V8
Supported ESC400Hz frequency
Recommended Battery3S to 12S LiPo
Assistant Software System RequirementWindows 7 /8 /10 (32 or 64 bit)
Mac OS
Recommended RadioLightbridge 2, S-BUS or D-BUS
Other DJI Products SupportedRonin-MX, S900, S1000, S1000+,iOSD, D-RTK, DATALINK PRO etc.
Operating Temperature-10°C to +45°C 


Motor Fail ProtectionMinimum 6 axis
Propulsion ProtectionMotor Overload
No Fly ZonesSupported
Low Battery Level Warning (only for DJI Intelligent Flight Battery)Smart RTH
Low Battery Voltage WarningSupported
DJI - Introducing the A3 & A3 Pro
DJI - Introducing the A3 & A3 Pro
DJI A3 and A3 Pro Flight Controller Tutorial—Setting Up
DJI A3 and A3 Pro Flight Controller Tutorial—Setting Up
DJI A3 and A3 Pro Tutorials-Connecting the DJI A3 and DJI A3 Pro
DJI A3 and A3 Pro Tutorials-Connecting the DJI A3 and DJI A3 Pro
DJI A3 and A3 Pro Flight Controller Tutorial - DJI Assistant 2
DJI A3 and A3 Pro Flight Controller Tutorial - DJI Assistant 2

Documents & Manuals

  • A3/A3 Pro Release Notes
  • A3/A3 Pro User Manual
  • A3/A3 Pro Quick Start Guide
  • A3 In the Box
  • A3 Upgrade Kit In the Box
  • A3/A3 Pro Disclaimer and Safety Guidelines


  • DJI Assistant 2 For Autopilot Release Notes
  • DJI Assistant 2 For Autopilot v2.0.3
  • DJI Assistant 2 For Autopilot v2.0.2
Software Settings
a. Make sure that the drivers and DJI Assistant 2 are correctly installed.
b. Make sure all the cables are connected to the correct ports on the flight controller. The device running the DJI Assistant 2 should be connected to the USB port on the LED module.
c. Make sure the flight controller is powered on.
d. Try other USB ports or other USB cables.
a. Make sure you are pulling the control sticks correctly.
b. Check the status of the flight controller in DJI Assistant 2. If any problem is found, follow the instructions on screen to fix it.
c. Confirm that the entire travel of the control stick is mapped to its corresponding channel, and in the correct directions.
d. Confirm that the ESC is working properly and that it is compatible with your flight controller.
e. Confirm that the remote controller is successfully linked with the aircraft.
a. Confirm that the orientation of the flight controller is correct.
b. Confirm that the orientation of IMU is consistent with the directions set in DJI Assistant 2.
c. Confirm that rotation direction of the motors and propellers are correctly matched.
d. Confirm that the ESCs are connected to the correct ports.
e. Confirm that the aircraft type is correctly set in DJI Assistant 2.
f. Calibrate the ESC throttle range (if using a third-party ESC).
a. Check if the aircraft’s center of gravity is correctly balanced.
b. Check if the GNSS’s center of gravity is properly set in DJI Assistant 2.
c. Check if the propellers are level.
Restart the flight controller.
Re-calibrate the remote controller by centering all the tap positions in DJI Assistant 2. Failure to do so may prevent certain channels from functioning properly after calibration.
P-mode (Positioning): GNSS and Vision Positioning Systems are used for precise positioning in this mode.
A-mode (Attitude): GNSS and Vision Positioning Systems are not used for holding position. The aircraft only uses its barometer to maintain altitude. If it is still receiving a GNSS signal, the aircraft can automatically return home if the remote controller signal is lost and if the Home Point has been recorded successfully.
F-mode (Function): Intelligent Orientation Control is activated in this mode.
M-mode (Manual): GNSS and Vision Positioning Systems are not used for holding position and no barometer is used to maintain altitude. Only use this mode in an emergency.
1. If your operating system is Windows 7, you need to download the usbser.sys file, place it in the C:\WINDOWS\system32\drivers folder, and then reinstall the DJI WIN Driver.
2. Click here to download the usbser.sys file.
Terminate the Root.exe process and then restart DJI Assistant 2.
The flight controller will be locked after upgrading the firmware as the parameters are reset. You can unlock the flight controller in DJI Assistant 2.
Hardware Installation Questions
The A3 series is compatible with standard 400Hz ESCs with 1520US center points.
If the ESC supports BED, then the red cable should be disconnected.
It should be installed near the center of gravity. Please keep it away from other electronic devices, such as the GNSS module, receiver, ESC, etc.
No, the CAN1 port supports the A3 module and other DJI equipment whereas the CAN2 port supports SDK equipment.
The iOSD storage device is built into the A3 flight controller and the iOSD parameters are displayed when used with the Lightbridge 2.
Course Lock, Home Lock, Point of Interest and Waypoints are available when using the A3 with Lightbridge 2 and the DJI GO app. These can be activated through DJI GO.
Yes, you can use third-party remote controllers equipped with S-BUS ports with the simulator.
Zenmuse XT/X3/X5/X5R.
It is used for communicating with DJI’s intelligent ESC and for firmware upgrades. Currently, it is only used with the DJI M600.
Yes, it supports both the Mobile SDK and the Onboard SDK.
It supports high precision positioning with vertical accuracy up to 0.02m + 1ppm, horizontal accuracy up to 0.01m + 1ppm, magnetic immunity, and high precision navigation information.
It can work from -10 °C to 45 °C.
The maximum wind speed resistance is 10 m/s.
The GNSS/IMU modules are equipped with LED indicators. Green blinking and blue blinking means the system is working normally, while red blinking indicates anomalies. To check system failures, launch DJI Assistant 2 or the DJI GO app and follow the steps displayed on screen.
The LED will blink red and yellow alternately if the compass data is abnormal during operation. Calibrate the compass to resolve the issue.
If the LED lights still blink red and yellow after compass calibration, it may be due to magnetic interference from the environment at your current location. Change to a different flight location.
Look at the LED on the IMU and GNSS modules. If the LED is green, then that module it currently being used. If the LED is blue, then that module is ready for use.
a. If you manually switch it on in the DJI GO app. (Lightbridge 2 is required)
b. If the currently used IMU module is malfunctioning, the system will automatically switch to a backup module.
c. If the currently used GNSS module is malfunctioning, the system will automatically switch to a backup module.
LED indicators will quickly blink blue if the switch is successful.
Yes. The propulsion system fail protection on the A3 requires the following conditions:
a. Thrust-to-weight ratio over 2.5.
b. Hexacopter or octocopter aircraft.
Note: If the aircraft starts spinning after motor fail protection kicks in, the aircraft will automatically switch to Course Lock mode.

Ultimate Reliability.Infinite Possibility.