I am considering using a Raspberry Pi 3B+ with a LimeSDRMini for a portable stations for QO-100 and don't want to have to lug a larger PC along.
Got it working with a screen attached and running the GUI using Ubuntu MATE - so seems to have just sufficient performance. Have not tried TX yet.
If running sdrangelsrv and controlling it via the API, is there an API call available through which to measure the received signal level at a specific frequency, or average power measured between two frequencies? The idea is to have that then display on a small 4 line display.