Introduction

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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.