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AD2 User Manual V1-052316
16
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Aircraft & Gimbal Operations
Radio Controller
Flight Controllers, Groundstation
Software, Maintenance
Battery Use
Cameras & Sensors
SYSTEM OPERATIONS
DJI A2 Flight Control System
The A2 flight controller is DJI’s most advanced multi-rotor stabilization controller.
Main Controller - Dual CAN-Bus system, 12 output channels, Built-in 2.4 GHz DR16 receiver, Reserved JR and
SPEKTRUM satellite
IMU - Highly sensitive built-in damper IMU module
GPS-COMPASS PRO PLUS - High gain antenna, high precision satellite receiver
PMU - Voltage detection and alarming, Extendable CAN BUS port
LED - LED Bluetooth indicator (LED-BT-I) adjusting parameters, Internet connection to smartphone
Features - 9 Types of multi-rotor and a customized motor mixer, Intelligent orientation control (IOC), Point
of interest (POI), Intelligent landing gear function, Auto return-to-home /one-key go-home, Multi-rotor one-
motor fail protection
A2 User Manual
V1.24 (January 2016 Revision) Detailed user instructions available on DJI's website –
http://dl.djicdn.com/downloads/a2/en/A2_Quick_Start_Guide_v1.22_en.pdf
Introduction
Assembly and Configuration
Basic Flying
Protection Functions Setting
Advanced Features
FAQ
Assistant Software & Driver
Download the Assistant Software after installing the DJI
Win Driver – https://www.dji.com/product/a2/download
Videos on How to Use the A2 Assistant Software, Firmware
Upgrades, etc: http://www.dji.com/product/a2/video
Compass Calibrations
Page 22 on DJI A2 Manual: http://dl.djicdn.com/downloads/a2/en/A2_Quick_Start_Guide_v1.22_en.pdf
The Compass can assistant the GPS to position the aircraft, which is very important during flight. As we know,
the compass is very sensitive to electromagnetic interference, which will cause abnormal compass data, and
lead to poor flight performance or even flight failure. Compass Calibration MUST be done for first time use. It is
recommended to calibrate the compass outdoors after the Controller Unit finds 7 or more GPS satellites. Regular
calibration enables the compass to keep optimal performance.
Calibration Procedures
1.
Quickly flip the control (flight) mode switch (all the way up and down 6-10 times) - LED will appear blue
2. Horizontal calibration: Pick up aircraft horizontally and rotate 360° - LED will appear green
3. Vertical calibration: Now turn aircraft vertically, nose down, and rotate 360° - Control Mode LED normal.
If LED appears red, repeat sequence.
Calibration Cautions
(1) DO NOT calibrate your compass where there is strong magnetic interference, such as magnetite, car park,
and steel reinforcement under the ground.
(2) DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.
(3) Compass Calibration is very important; otherwise the flight control system cannot work.
Figures 2.18: A2 Assistant Software Setup