arduino-canbus-monitor
An Arduino-based CAN bus monitoring tool implementing the SLCAN protocol for low-speed automotive diagnostics.
What is arduino-canbus-monitor?
arduino-canbus-monitor is an open-source firmware that turns Arduino boards with MCP2515-based shields into CAN bus monitoring devices. It implements the SLCAN protocol to enable communication with standard CAN analysis software, allowing users to sniff and analyze data on low-speed automotive CAN networks typically found in vehicle interiors.
Embedded systems developers, automotive hobbyists, and engineers working with vehicle diagnostics who need an affordable, open-source solution for CAN bus monitoring and prototyping.
It provides a cost-effective alternative to commercial CAN interfaces by leveraging ubiquitous Arduino hardware while maintaining compatibility with professional CAN analysis tools through the standardized SLCAN protocol.
Overview
Can bus monitoring tool based on arduino and can bus shield. Implements CAN ASCII/SLCAN protocol compatible with Lawicel CAN232/CANUSB. Can be used for monitoring low speed CAN (interior can bus of most cars, less than 500kbps). For higher speeds serial port can become a bottleneck in case data density is high.
Use Cases
Best For
- Monitoring low-speed CAN buses in vehicles (under 500kbps)
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