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Raspberry Pi Pico-CAN-B User Guide


This is a CAN module designed for Raspberry Pi Pico, enabling Pico to achieve reliable long-distance communication.


  • Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series boards.
  • Features CAN function, adopts SPI interface CAN controller MCP2515 with transceiver SIT65HVD230DR.
  • Comes with online development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples).


  • Operating voltage: 3.3V~5V
  • CAN controller: MCP2515
  • Control interface: SPI
  • CAN transceiver: SIT65HVD230DR
  • Baudrate: 5K~1000Kbps
  • Dimensions: 52 x 21mm

Pinout Definition


Pico User Guide

Hardware Connection

Please take care of the direction when you connect Pico, a USB port is printed to indicate. You can also check the pin of Pico and the module when connecting.

Demo Download

1. Directly download it on the Raspberry Pi: Open the Raspberry Pi and execute:

sudo apt-get install p7zip-full
cd ~
sudo wget  https://www.waveshare.com/w/upload/8/8a/Pico-CAN-B-Code.7z
7z Pico_Pico-CAN-B-Code.7z -o./Pico-CAN-B-Code.7z
cd ~/Pico-CAN-B-Code

2. Also, you can download the demo under the #Resource.

How to Use the Demo


  • 1. Press and hold the BOOTSET button on the Pico board, connect the pico to the USB port of the computer through the Micro USB cable, and release the button after the computer recognizes a removable hard disk (RPI-RP2).
  • 2. Copy the pico_micropython_xxxxx.uf2 file in the python directory to the recognized removable disk (RPI-RP2).
  • 3. Open Thonny IDE (Note: Use the latest version of Thonny, otherwise there is no Pico support package, the latest version under Windows is v3.3.3).
  • 4. Click Tools -> Settings -> Interpreter, and select Pico and the corresponding port as shown in the figure.

  • 5. File -> Open -> MCP2512.py file, click to run, as shown in the following figure:

This is a transceiver demo, connect to another CAN device (A-A B-B connection), configure the frame ID 0x123, and then send 1-8 in turn.




Development Software

Download Firmware

  • Download MicroPython Firmware:

  • Download C_Blink Firmware:

Open-source Demo