Feiyu FY-DOS Installation & Operation Manual page 5

GPS module interface
The GPS pin interface consist of: GND, +3V , RX0. The characteristics are:
Baud rate: 38400
Data bits: 8
Stop Bits: 1
Parity: None
Interface Features: TTL level
Connect the above to the GPS Receiver. The GPS data protocol is a standard NEMA0183 and the statement
must be $ GPRMC, $ GPGGA.
Attention : DOS fixed-wing aircraft firmware version V1.21 and above is not support connect the Hornet-OSD.
Please do not connect the Hornet-OSD to DOS GPS
Data Radio interface
The UART pin interfaces consist of: GND, power 5V , TX1, RX1. The characteristics are as follow:
Baud Rate: 19200
Data bits: 8
Stop Bits: 1
Parity: None
Interface Features: TTL level
The pin interfaces connects to the Data Radio, PC computer serial port or OSD module. You can set DOS
control parameters through this interface. The port is also used to upgrade DOS firmware. Please read the
procedure for the firmware upgrade.
Attention : DOS fixed-wing aircraft firmware version V1.21 and above
Hornet-OSD to DOS UART
upgrade Hornet-OSD firmware to
Servo output interface
No. S8
P2
Servo
Power
Output
+5V
Interface
GND
The firmware above V1.1 servo output introduction
S1: connection aileron servo 1(same signal as S5).
S2: connection elevator servo.
Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd.
port. Please do not connect the Hornet-OSD to DOS GPS port.
V1.7.
＋
－
S7 S6 S5
S8 S4
S7 S6
P1 N AIL2
Power Power Power
+5V +5V
GND GND GND
port.
S3 S2 S1
S5 S4 S3
RUD THR
Power Power
+5V +5V +5V
GND GND
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Page 5
you can only connect the
S2 S1
ELE AIL
Power Power
+5V +5V
GND GND
service@feiyu-tech.com
And please