is PXFmini flight controller also supported by uavcast?
Not at the moment, but i can add it for next UAVcast-Pro version
is <Navio2 + RPi 3 B plus> supported by uavcast?
Yes. UAVcast-Pro supports Navio+ and Navio2 from version 2.0.0
Sinamics Glad to see Navio support is back. My PixRacer is also a PX4 board (I believe), so I'm open to help test.