PinePhone satellite navigation
On PP, GNSS (GPS, BeiDou, Galileo and GLONASS) is handled by
the modem module. You need to enable the GNSS via AT commands, optionally upload
the data that can speed up initial GNSS almanac and ephemerides acquisition, and
then you'll be able to read NMEA sentences from the NMEA port
/dev/ttyUSB1) or via
AT+QGPSLOC AT command.
See manufacturer's docummentation.