Introduction
============
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:target: https://docs.circuitpython.org/projects/mcp2515/en/latest/
:alt: Documentation Status
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:target: https://github.com/astral-sh/ruff
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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.
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