Elektor (blog) PiCAN 2 – CAN-Bus Board for Raspberry Pi (OBDII) Elektor (blog) A PiCAN 2 HAT provides your Raspberry Pi with full CAN-Bus capability: CAN v2.0B at 1 Mb/s and high-speed (10 MHz) SPI Interface. It uses the Microchip MCP2515 CAN controller with MCP2551 CAN transceiver.

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PiCAN 2 – CAN-Bus Board for Raspberry Pi (OBDII) – Elektor (blog)