FYI. I'm using both same Frysky R9 slim plus OTA. One is Master and another is slave for SBUS
redundancy. It can be limited to 4 UART where I'd tested before, maybe I need to share one
UART with another liked Turtle mode with GPS rescue mode by reducing offset to keep other
under limited range for one AUX channel, it is possible to work?
I managed to understand I need to setup on "Angle" Mode on the first time before switch to
Horizon mode and then acro mode. This is my bad mistake.
