©2013-2014 DJI Innovations. All Rights Reserved. - 1 -
2.4G Bluetooth Datalink & iPad
Ground Station User Guide V1.08
Thank you for purchasing DJI products. Please strictly follow this user guide to mount and connect the 2.4G
Bluetooth Datalink, install the Assistant Software on your computer, as well as the App on your mobile device.
Note：The map of Mainland China download from Mainland China IP addresses has differences with the actual
geographic environments. If users download the map of Mainland China from foreign IP addresses, which will be
more accurate.
2.4G Bluetooth Datalink
The 2.4G Bluetooth Datalink consists of the Air end and the Ground end, which provides reliable and stable remote
wireless transmissions for Ground Station based applications. The signal flow is as shown below.
The Air
end
The
Ground end
Flight control
system
PC Ground
Station
iPad Ground
Station
CAN-Bus
USB
Bluetooth
Bluetooth
Signals from
Ground Station
Signals from Flight
control system
BTU module
CAN-Bus
Flight control systems that support the 2.4G Bluetooth Datalink
ACE ONE(Firmware V4.02 or above), WKM(Firmware V5.24 or above),
NAZA-M, NAZA-M V2(Firmware V4.00 or above), A2(Firmware V2.0 or above)
1.1 In the box
BTU
Module
USB
cable
CAN-Bus
cable
DC power
cable
Ground Station
Installer CD for
PC
The Ground end of
2.4G Bluetooth
Datalink
The Ground end of
2.4G Bluetooth
Datalink
The Air end of
2.4G Bluetooth
Datalink
Important：the firmware of BTU should be upgraded to version 1.0.1.2 or above to use with the 2.4G Bluetooth
Datalink.
1.2 User supplied
To use the 2.4G Bluetooth Datalink and Ground Station, please prepare the Flight control system, the aircraft,
batteries, PC or iPad etc.
1.3 Connections and use
(1) Please assemble the antenna of the Ground end first.
©2013-2014 DJI Innovations. All Rights Reserved. - 2 -
(2) For connections and use please refer to the diagram below.
Antenna
The tail of the Antenna
should be pointed
downward and
unobstructed to ensure the
communication distance.
· PC Ground Station
· 2.4G Bluetooth Datalink
Assistant Software
· As sista nt So ftw ar e o f
Flight control system
USB port
Connect to a PC via a
USB cable to use the
PC Ground Station or
configure the 2.4G
Bluetooth Datalink in
the Assistant Software.
CAN-Bus port
Connect the BTU
module when using the
iPAD Ground Station
DC power port
Connect DC power, you
can choose one of the
USB power supply or DC
power supply to provide
power for the Ground
end.
The Ground end
Distance between the
two ends should be
more than 1.5m
Com m u n i c a ti o n &
power supply port
Ex tra pow er
supply port
· 3S-6S Battery
· 9.9V~25.2V
DC power
-
+
· iPad Ground
Station
· Assistant of Flight
control system
+
-
90
o
To Flight control system
To any CAN-Bus port on ACE ONE, WKM ,
NAZA-M，NAZA-M V2
Or to the CAN2 port(or the CAN-Bus port
on the devices connected to the CAN2
port) on A2
The Air end
Antenna
The tail of the Antenna
should be pointed
upwards and
unobstructed to ensure
the communication
distance.
Notes：
(1) You can configure the Flight control system using the Assistant software on a PC or iOS mobile Device
wirelessly over the link of the 2.4G Bluetooth Datalink, however you cannot upgrade the firmware of
the Flight control system using this communication route.
(2) When connecting a BTU module or a LED Bluetooth unit to the Flight control system to configure in
the Assistant on mobile devices, as well as connecting a BTU module to the Ground end to use the iPad
Ground station, the two Bluetooth communication links will not interfere with each other.
(3) If the Air end is changed to connect to a new Main controller, you should power cycle the Ground end.
(4) Make sure the LED indicator of BTU module is green after power on, for specific usage details please
refer to the BTU Manual.
(5) For usage of the PC Ground Station please refer to the latest Ground Station User Manual.
Important :
(1) If there are obstacles between the ground and air ends then the radio signal of the 2.4G Bluetooth
Datalink will be weak; please make sure the antennas are always visibly unobstructed during the flight.
Human body, trees, buildings or hills will disconnect the link between the Air end and the Ground end.
(2) Make sure the antenna of the Air end is pointing down, and the antenna of the Ground end is pointing
upwards; it’s better to put the Ground end at a high place to get further transmission distance.
(3) When using the ACE ONE Flight control system with the 2.4G Bluetooth Datalink, the Ground Station
will connect to the Main controller 15s after power on.
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