The DJI transmitter and the O3/O4/O4 Pro Sky-End receiver are already bound, but the app or Betaflight Configurator still shows no receiver signal / or you need guidance on how to set up the receiver.
The DJI transmitter and the O3/O4/O4 Pro Sky-End receiver are already bound, but the app or Betaflight Configurator still shows no receiver signal / or you need guidance on how to set up the receiver.
DJI Transmitter Frequency Matching for Sky-End Video:
（ https://www.youtube.com/watch?v=yyOULp6pCO0 ）
App shows No Receiver Signal:
Betaflight shows No Receiver Signal:
1. Check whether the receiver port on UART2 of the flight controller is enabled:
Betaflight Configurator:
SPEEDYBEE APP：
2. Check whether the SBUS receiver protocol is selected on the Receiver page:
Betaflight Configurator:
SPEEDYBEE APP：
3. Confirm the SBUS protocol setting in the goggles:
The Protocol options are 'SBUS Baud Fast' and 'Normal'.
For DJI FPV Goggles 2nd Generation:
Go to Menu > Settings > Control > Protocol, and it is recommended to set it to SBUS Baud Fast.
For the previous generation DJI FPV Goggles:
The settings menu is as follows:
It is also recommended to set it to SBUS Baud Fast.
4. Set up the flight controller using the CLI command line:
Please connect to Betaflight Configurator or the SpeedyBee App, enter the CLI command line interface, and set the corresponding sbusbaudfast parameter.
Note: The parameter in the goggles must match the flight controller setting. That is, if the goggles are set to SBUS Baud Fast, you should set the flight controller CLI parameter as follows:
set sbusbaudfast = ON
save
If the goggles are set to Standard, then the flight controller CLI should be set as follows:
set sbusbaudfast = OFF
saveIf, after following the steps above to configure the flight controller, the arming disabled message still shows “No valid receiver signal detected”, please check whether the firmware versions of your video transmitter, FPV goggles, and transmitter are the same. If the versions do not match, the system may not function properly even if the transmitter is connected.
