Dumb question I’m sure but, could someone point out UART 1-6 on the pic for me?

Wherever it says TX/RX, those are your UARTs.

And now maybe I can learn something...where are TX6 and RX3?

This is supposed to be a good board...I actually have one arriving for my next build, although I ordered a f50 and I believe the layout is a bit different.

(14-Jan-2021, 04:18 AM)JinxFPV Wrote: And now maybe I can learn something...where are TX6 and RX3?

There is not TX6 or RX3 on this board. Especially on the smaller board, manufacturers don't have room to breakout all the available UART. RX6 was supposed to be used for ESC telemetry, so they left out TX6. TX3 is meant for Smartaudio, so RX3 was leave out.


If you are good at solder, you can do a direct connection to the MCU pin to access the missing UART. But the board has connection for everything.
uart 1 for receiver.
UART 2 or 4 for gps or dji osd
UART 3 Smartaudio
UART 5 for what ever
UART 6 for GPS or dji osd

The only thing miss is sdl and SCL for baro. But it is likely you can remap one of then UART.