31sem (editado 31sem)
Geprc HD722 FC Not Communicating with DJI O4 Air Unit - Help!
Anybody had any issues with the Geprc F722 HD fc communicating with the Dji O4 air unit? My fc isn't making the beep tone it should when connecting to the air unit, even thought the air unit is sending video to my goggles but no overlay or controller input (controller is connecting to goggles - Dji RC3). I had it working a couple days ago, and I get to the local park and nothing works pls help 🙏
31sem (editado 31sem)
Usually when there is Video on, but no OSD displayed, it's due to the the VTX is getting power, but the UART is not mapped properly, or the TX and RX cables are reversed. Check your programming app to verify your VTX is on the right selected UART connected to the board. Then check if the TX cable on the VTX is routed to the RX on the FC, and TX on the FC is routed to the RX on the VTX. Not sure if the OSD was working before you took it to the park, or maybe something got disconnected while traveling.
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31sem
What he said^. I was thinking you have the TX-RX reversed or you have selected the wrong UART in BetaFlight.
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