A2 Flight Control System

The A2 Flight Control System for Multi-Rotor Aircraft from DJI provides the autonomy that four, six, and eight rotor aircraft require for stable flight. The A2 breaks down into five main components: the MC (main controller) with CAN-Bus hub and receiver, IMU, GPS, PMU, and LED. The IMU, GPS, and PMU provides the MC with altitude, acceleration, location, orientation, and other data which gets combined with any pilot instructions and translated into motor response. The system supports Quad I, Quad X, Hex I, Hex V, Hex Y, Hex IY, Oct X, Oct I, and Oct V motor mixes. The included receiver is compatible with Futaba FASST series and DJI DESST series transmitters.

Intelligent Orientation Control (IOC)
On multi-rotor aircraft-- as with airplanes--pressing "forward" on the transmitter (radio controller) moves the nose forward. However, because multi-rotors are largely symmetrical, it can be easy to lose track of which way the nose is pointing, causing the controls to become counter-intuitive. To avoid this, IOC--when enabled using the assistant software--defines movement relative to the pilot so that, for example, pressing forward will always result in the aircraft moving forward from the pilot's perspective

Point of Interest (POI)
When the GPS signal is good, users can record the current position of the aircraft as a point of interest by a preset switch on the transmitter (radio controller). The aircraft can achieve a circling flight around the point of interest with the nose pointing at the POI in an area of 16.4 to 1,640' radius, when the roll command is given. This function is ideal for shooting of a fixed or stationary object, creating an aerial tracking shot

Intelligent Landing Gear Function
Once you enable the Intelligent Landing Gear function in the assistant software, the landing gear will default at the lower position when the aircraft is on the ground. The system will also lower the landing gear in an emergency, the event of motor failure, or on auto landing, to protect the aircraft and gimbal. You can lower or retract the landing gear using a switch when the aircraft's altitude is over 16.4' from the ground

Return to Home Failsafe
Assuming the GPS has been properly calibrated and enough satellites are available, the aircraft will automatically return to its home point in the event contact with the transmitter (radio controller) is ever lost. It is also possible to assign a button using the assistant software that, when pressed, will cause the aircraft to automatically return to the home point

One-Motor Fail Protection
Available when the aircraft is in attitude or GPS attitude mode. In the event one motor fails the aircraft can maintain a stable flying condition, enough that it can safely be brought back home and landed