Wanted a longer range cruise ship. Despite being built largely from parts on hand, there's still quite a lot of new stuff for me in this quad: 900 Mhz control, telemetry, fport, GPS.
Setup Notes
Betaflight 3.5.3 firmware.
UART allocation
More features means more UARTS, and this FC doesn't have many, nor does it make them particularly accessible. I had to remove a couple of connectors from the board, and solder directly. Unsure if it's possible use RX1/TX1 for fport as the existing sbus inverter is likely to be driving the RX input. But probably ok for vtx control. Hence I ended up with:
FPORT -> TX3
GPS -> TX6,RX6
VTX Control -> TX1
Camera Control -> soft serial 1 TX=A1/PWM5, RX=A8/PWM6
FPORT configuration
serialrx_provider = FPORT
serialrx_inverted = OFF
serialrx_halfduplex = ON
Soft serial configuration
resource SERIAL_TX 11 A1
resource SERIAL_RX 11 A8
R9 Firmware
Choice of r9 firmware seems a black art. Here's what's being used:
r9m: R9M_FCC180329.frk
r9mm: FW-R9MINI-R9MM-F.PORT-180629.zip
RSSI scaling
set rssi_scale = 200
GPS Setup
Ports: UART6 Sensor GPS 9600
Configuration: GPS Enabled, Protocol: UBLOX, Auto Baud: On, Auto Config: On
Photos
Part List
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