GPS Configuration

Required Packages

[!NOTE] gpsd-tools provides cgps which I use for status monitoring and troubleshooting.

1. Install required packages:
   sudo apt install gpsd gpsd-tools
2. Enable the gpsd service:
   sudo systemctl enable gpsd
3. Start the gpsd service:
   sudo systemctl start gpsd
4. Check GPS device is working using cgps - if multiple devices, specify the device path:
   cgps or cgps /dev/ttyACM#
5. If it doesn’t work, check for device-specific instructions below.

USB Dongles

BU-353N

• GlobalSat BU-353N Product Page
• lsusb = 067b:23a3 Prolific Technology, Inc. ATEN Serial Bridge
• ls /dev = /dev/ttyUSB#

LED OFF: Receiver switch off
LED ON: No fixed, Signal searching
LED Flashing: Position Fixed

1. Edit the gpsd configuration file:
   sudo nano /etc/default/gpsd
2. Add the device path to the devices:
   DEVICES="/dev/ttyUSB#"
3. Add the following gpsd options:
   GPSD_OPTIONS="-b -n"

[!NOTE] These mandatory switches were identified by the wardriving community for the BU-353N to work properly. They enable read-only mode, and tell gpsd not to wait for a client before polling the GPS device.

BU-353S4

• GlobalSat BU-353S4 EOL Notice
• lsusb = 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
• ls /dev = /dev/ttyUSB#

LED OFF: Receiver switch off
LED ON: No fixed, Signal searching
LED Flashing: Position Fixed

1. Edit the gpsd configuration file:
   sudo nano /etc/default/gpsd
2. Add the device path to the devices:
   DEVICES="/dev/ttyUSB#"

uBlox 7

• lsusb = 1546:01a7 U-Blox AG [u-blox 7]
• ls /dev = /dev/ttyACM#
• gpsd udev rules creates /dev/gps#

1. Edit the gpsd configuration file:
   sudo nano /etc/default/gpsd
2. Add the device path to the devices:
   DEVICES="/dev/ttyACM#"