Equipment

• Raspberry Pi
• Adafruit Ultimate GPS with USB - 66 channel w/10 Hz updates
• USB micro-b to micro-b OTG cable

Setting up the Raspberry Pi

• Install Raspbian using the relevant instructions
• plug everything in

Configuring Raspbian

Install gpsd

sudo apt install gpsd

Edit /etc/defaults/gpsd and set the DEVICES variable to /dev/ttyUSB0

DEVICES="/dev/ttyUSB0"

Restart gpsd

sudo systemctl restart gpsd

Now you can run cgps to see your gps coordinates. Gpsd listens on localhost:2947. The gpsd_json documentation details how interact with the gpsd process.

I also wrote a simple python client to get gps data from gpsd.