Introduction

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A CircuitPython library for working with the MCP2515 CAN bus controller

Dependencies

This driver depends on:

• Adafruit CircuitPython <https://github.com/adafruit/circuitpython>_
• Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>_

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle <https://circuitpython.org/libraries>_.

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI <https://pypi.org/project/adafruit-circuitpython-mcp2515/>_. To install for current user:

.. code-block:: shell

pip3 install adafruit-circuitpython-mcp2515

To install system-wide (this may be required in some cases):

.. code-block:: shell

sudo pip3 install adafruit-circuitpython-mcp2515

To install in a virtual environment in your current project:

.. code-block:: shell

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-mcp2515

Usage Example

.. code-block:: python3

import board
import busio
import digitalio
import adafruit_mcp2515

CS_PIN = 5
cs = digitalio.DigitalInOut(board.D5)
cs.direction = digitalio.Direction.OUTPUT
spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
mcp = adafruit_mcp2515.MCP2515(spi, cs)

Documentation

API documentation for this library can be found on Read the Docs <https://docs.circuitpython.org/projects/mcp2515/en/latest/>_.

For information on building library documentation, please check out this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>_.

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/adafruit/Adafruit_CircuitPython_MCP2515/blob/main/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.