Stefan Monnier:
I didn't install google 'services', so there is only some device statistics communication with lineageos.org, which can be disabled in the privacy menu.it's android without the "I'd like to call home' parts, if you choose the bare install.AFAIK the bare install will still call home: every time you connect to a wifi network it performs an HTTP request to a Google server in order to detect whether the local connection gives you access to the internet or not (and if not, it presumes it's a captive portal and offers you to launch a browser to sign in).
Anyway I doubt, any lineageos powered device would have "2-4 USB ports" or "Serial RS232/485 port". readU frank