The Canis Labs CANPico is a carrier board for a Raspberry Pi Pico that provides an advanced CAN controller (MCP2517FD) and CAN transceiver, ready for connection to CAN bus wires via a simple screw terminal. The CANPico includes an instrument header with the analog CAN H and CAN L signals and the digital RX and TX signals for use with an oscilloscope or logic analyzer. Software includes an open source SDK for MicroPython (via a custom MicroPython firmware build) and an open source SDK for C. The MicroPython SDK also includes the CANHack toolkit API for mounting low-level attacks on the CAN protocol.
The CANPico is also supported as a development platform for other Canis Labs products and technologies. It is available to buy from SK Pang.
A short introduction to the Canis Labs CANPico CAN hardware for the Raspberry Pi Pico. Demonstrates sending CAN frames with the MicroPython CAN API and a logic analyzer with a CAN protocol decoder.
CANPico pin diagram showing CANPico signals in orange (PDF)
The other connections are USB (for power and connectivity to a host) and the CAN bus. The 6-pin header is intended for a logic analyzer and oscilloscope to see raw CAN signals, the yellow jumper is for enabling the termination resistor, and the blue jumper enables transmission on the bus (if this is removed then the board is restricted to only listening to the CAN bus, a useful security feature).