offline-gps-pi

Offline GPS Raspberry pi app

Installation

1. Install updates

   sudo apt update & sudo apt upgrade -y

2. Update boot Config File, enable serial and i2c, and disable serial console. look in the examples folder.

   sudo nano /boot/config.txt

3. Install required software packages for the gps chip

   sudo apt install -y chrony gpsd gpsd-tools git pps-tools 

4. Install required software packages for the lcd screen

   sudo apt install -y python3-pip python3-pil python3-numpy python3-smbus python3-serial python3-dev python3-spidev

5. Install required software packages for this app

   sudo apt install -y libosmium2-dev osmium-tool pyosmium libgdal-dev cmake python3-networkx

6. Turn off the pi

   sudo reboot

7. Install the components for both devices if you do this earlier it might make your pi unstable (ask me how i know), at least leave the power lines disconnected until the software is installed.

8. Configure gpsd and chrony using the provided files in the examples folder

9. enable the gpsd service & chrony service

   sudo systemctl enable gpsd && sudo systemctl start gpsd
   sudo systemctl enable chrony && sudo systemctl start chrony

10. test gpsd

    cgps -s

11. test pps

    sudo ppstest /dev/pps0

12. Clone repo :)

13. create venv and install requirements

    python3 -m venv venv
    source venv/bin/activate
    pip install -r requirements.txt

14. run the app

    python3 -m gpspi

15. cry because it doesn't work