PathFinder

These are the underlying modules for the PathFinder. Each one has a specific role to perform and most are tied together under our two large “main” modules: OBD.py and HUD.py. A python file main.py is used as an entrypoint for the program and each main module takes their own respective thread to run concurrently.

# an instance of OBD and HUD declared and ran
def main():
   screen = display.Display()
   obd = OBD.Obd(screen)
   hud = HUD.Hud(screen)
   hud.start()
   obd.start()

• pathfinder package
  • Submodules
  • pathfinder.HUD module
    • HUD Module
  • pathfinder.OBD module
    • OBD Module
  • pathfinder.GPS module
    • GPS module
  • pathfinder.directions module
    • Directions Module
  • pathfinder.display module
    • Display Module
  • Module contents

MQTT

One more important thing to note is that the PathFinder relies on a connection to a MQTT broker. For development the Eclipse Mosquitto docker image was used as the backing broker for our communications. A simple web-app built with the flask framework was then written to facilitate users sending information to our Raspberry Pi. If you want to see the underlying code for the web-app, you can check it out at https://github.com/Marcusk19/MQTT-web-app