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2. Open the ground station software, select the corresponding COM port and connect to the
flight control. The normal connection of the flight control means that the D03 module's data
transmission link has been connected. If the connection fails, please check the following points.
1) Whether the baud rate of the flight control and the D03 are the same.
2) Make sure the ground unit driver of D03 is installed successfully.
3) Use the parameters setting software of D03 to ensure that all the parameters of the
airborne unit and the ground unit are consistent.
4) Make sure that the RX of the flight control corresponds to the TX of D03 and the TX of
the flight control corresponds to the RX of D03.
3. Open the RC setting interface in GCS software and check if the data of the remote control is
normal. If the data of the remote control changes normally with the joystick, the remote control
link is connected. If the remote control connection fails, please check if the "-, +, signal" of S-BUS
is reversed.
5.3. D03 Indicators Instruction
① S-BUS data indicator L1
Flashing means there is data transmission of RC link, no flashing means no data transmission
of RC link
