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10.2 V21 Serial Port Use
Default baud rate of Serial Port is 115200, pls refer to below steps to connect
flight control and GCS software.
1.Connect the flight control to the airborne unit, note that the line sequence and
the baud rate of the flight control port must be the same as the baud rate of the
serial port.
2. Connect the ground station software to the ground unit, note that the cable
sequence and baud rate of the selected port of the ground station software must
be the same as the baud rate of the serial port.
3. If you need to use other baud rate, simply change the baud rate of airborne unit
or the device connected to the airborne unit. The ground unit does not need to
change the baud rate, just open the ground station and select 115200 to connect.
Serial Port Baud Rate Change
Press and hold the SET key (approx. 2 seconds) after power on the airborne unit.
Release when RX and TX are illuminated, it indicates entering the serial port baud
rate change mode. After entering the mode, press the SET key briefly (<1 second)
to switch the corresponding baud rate. The corresponding LED is always on to
represent the corresponding baud rate, as follows.
Indicator Status
Baud Rate
Rx continuously ON
9600bps
Tx continuously ON
19200bps
S1 continuously ON
38400bps
S2 continuously ON
57600bps
S3 continuously ON
115200bps
After setting, press and hold the SET key (about 2 seconds) and release the key
when TX and RX light up at the same time. After releasing, the indicator will
