The GNSS/GPS USB device uses the NMEA protocol.
If is important to enable USB if it is disabled.
Check if device is found during boot:
$ dmesg | grep blox
[ 2.164296] usb 1-1.1: Product: u-blox 7 - GPS/GNSS Receiver
[ 2.164319] usb 1-1.1: Manufacturer: u-blox AG - www.u-blox.com
Check output of the follow command to the the NMEA codes:
cat /dev/ttyACM0Automatically enable on start-up:
sudo cp gnss-tracker.service /etc/systemd/system/
sudo systemctl enable gnss-tracker.service # start on boot
sudo systemctl start gnss-tracker.service