If you can find an Android terminal program that can access USB serial
devices, it should be able to use nanoVNA shell commands.
Thank you for the tip. I tried to find a terminal program and tried a few but couldn't get any to connect with the USB as a serial port. It might be my fault because I don't understand Android setup very well (I couldn't find PuTTY for Android.) But my NanoVNA USB connects fine to a PC with PuTTY. I tested the available commands and they communicate, but they don't work as fully as using the menus on the NanoVNA itself. Would upgrading the firmware give more or better commands with a serial terminal?
-Pete
Pete Buxton