I’m looking for guidance on building a CAN Bus system using an Arduino. I know I’ll need a CAN transceiver module (like the MCP2515) and an Arduino board, but I’d love some advice on the wiring, coding, and best practices for communication between multiple devices.

Has anyone here built a CAN Bus with Arduino before? What challenges should I expect, and are there any libraries or resources you’d recommend? I’m mainly interested in learning how to send and receive data efficiently.

To build a Controller Area Network (CAN) bus with an Arduino, you’ll need an MCP2515 CAN module and an Arduino board. Connect the module to the Arduino via SPI, then use the CAN library to send and receive data. Ensure proper termination with 120Ω resistors. Libraries like "mcp_can.h" simplify coding.