Introduction
============
.. image:: https://readthedocs.org/projects/adafruit-circuitpython-pixelbuf/badge/?version=latest
:target: https://docs.circuitpython.org/projects/pixelbuf/en/latest/
:alt: Documentation Status
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:target: https://adafru.it/discord
:alt: Discord
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:target: https://github.com/adafruit/Adafruit_CircuitPython_Pixelbuf/actions
:alt: Build Status
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:target: https://github.com/astral-sh/ruff
:alt: Code Style: Ruff
A pure Python implementation of adafruit_pixelbuf for smaller boards.
Dependencies
=============
This driver depends on:
* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
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>`_
or individual libraries can be installed using
`circup <https://github.com/adafruit/circup>`_.
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-pixelbuf/>`_.
To install for current user:
.. code-block:: shell
pip3 install adafruit-circuitpython-pixelbuf
To install system-wide (this may be required in some cases):
.. code-block:: shell
sudo pip3 install adafruit-circuitpython-pixelbuf
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-pixelbuf
Installing to a Connected CircuitPython Device with Circup
==========================================================
Make sure that you have ``circup`` installed in your Python environment.
Install it with the following command if necessary:
.. code-block:: shell
pip3 install circup
With ``circup`` installed and your CircuitPython device connected use the
following command to install:
.. code-block:: shell
circup install adafruit_pixelbuf
Or the following command to update an existing version:
.. code-block:: shell
circup update
Usage Example
=============
This example tests that pixelbuf works.
.. code-block:: python
class TestBuf(adafruit_pixelbuf.PixelBuf):
called = False
def show(self):
self.called = True
buffer = TestBuf(20, bytearray(20 * 3), "RGB", 1.0, auto_write=True)
buffer[0] = (1, 2, 3)
Documentation
=============
API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/pixelbuf/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_Pixelbuf/blob/HEAD/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.
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