https://github.com/henrywait/picocangauge

A CAN bus Gauge using MCP2515 and GC9A01 Round display on Raspberry Pi Pico written in CircuitPython
https://github.com/henrywait/picocangauge

can car circuitpython gc9a01 haltech mcp2515 mx5 pico

Last synced: about 1 month ago
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A CAN bus Gauge using MCP2515 and GC9A01 Round display on Raspberry Pi Pico written in CircuitPython

• Host: GitHub
• URL: https://github.com/henrywait/picocangauge
• Owner: HenryWait
• Created: 2024-09-12T23:32:31.000Z (2 months ago)
• Default Branch: main
• Last Pushed: 2024-09-14T03:02:26.000Z (2 months ago)
• Last Synced: 2024-09-29T10:01:39.606Z (about 2 months ago)
• Topics: can, car, circuitpython, gc9a01, haltech, mcp2515, mx5, pico
• Language: Python
• Homepage:
• Size: 22.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# PicoCANGauge

Inital version uses circuitpython as a proof of concept.

Car is running a Haltech Elite 1500 ECU, [CAN protocal](https://www.ptmotorsport.com.au/wp-content/uploads/2022/09/Haltech-CAN-Broadcast-Protocol-V2.35.0-1.pdf)

Hardware:

- Raspberry Pi Pico

- Waveshare 1.28" Round Display Module

- Generic MCP2515  w/ TJA1050 reciever and 16mhz clock CANbus module

- 3D printed display housing that fits inside an MX5 NA/NB airvent

Issues:

- After a short time of listening for CAN messages and displaying them the Pico runs out of memory and crashes

- Attempting to listen for a wider range of messages and display upto four values causes messages to be missed and values get updated less frequently

TODO: 

- Rewrite code in C++ to compile for Pico

- Implement multiple Gauge faces for different values and styles of gauges