Table of contents

• Table of contents
• Description
  • • Remaining work
• Architecture description
  • Canbus message reader STM32
  • Message Relay via raspberry pi
    • Libraries used (and why)
    • JSON config file format
    • Test mode
  • Connecting the pi to the internet
  • Boot script
  • Boot time optimization
• How to compile the project
• FAQ
  • • • the setup is the one of the original creator, how do i access the pi?
      • I see some errors in the log from the a serial interface, what is wrong?
      • I would like to test the software but i don't have a serial device with me
      • I don't have linux
• Local testing
  • Setup
    • Connecting to the RPi
    • Broker
    • Simulating serial-device
  • Running

Description

The telemetry software section of the project comprised such tasks

• creating software for relaying CANBUS messages through MQTT via 4G using a Raspberry pi
• creating software for reading CANBUS messages from main CANBUS loop using STM32 chip and sending via serial to raspberry
• lowering boot time of Raspberry pi
• writing script to be launched at boot to connect to the internet via modem
  • reference here https://www.jeffgeerling.com/blog/2022/using-4g-lte-wireless-modems-on-raspberry-pi/ 
  • for more info about modem etc refer to Electrical 

Architecture description

Canbus message reader STM32

Most of it is still not imple

How to compile the project

Remaining work