adafruit-circuitpython-pixelmap

Introduction

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CircuitPython library for mapping multiple neopixels to behave as one for the purposes of setting colors or showing animations.

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>_.

• NeoPixel Products <https://www.adafruit.com/category/168>_

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-pixelmap/>_. To install for current user:

.. code-block:: shell

pip3 install adafruit-circuitpython-pixelmap

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

.. code-block:: shell

sudo pip3 install adafruit-circuitpython-pixelmap

To install in a virtual environment in your current project:

.. code-block:: shell

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

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_pixelmap

Or the following command to update an existing version:

.. code-block:: shell

circup update

Usage Example

.. code-block:: python

import board
import neopixel
import time
from adafruit_pixelmap import PixelMap, horizontal_strip_gridmap, vertical_strip_gridmap

# Update to match the pin connected to your NeoPixels
pixel_pin = board.NEOPIXEL

# Update to match the number of NeoPixels you have connected
pixel_num = 32

pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.1, auto_write=True)

pixel_wing_vertical = PixelMap.vertical_lines(
    pixels, 8, 4, horizontal_strip_gridmap(8, alternating=False)
)
pixel_wing_horizontal = PixelMap.horizontal_lines(
    pixels, 8, 4, horizontal_strip_gridmap(8, alternating=False)
)

for row in range(len(pixel_wing_horizontal)):
    pixels.fill(0x00000)
    pixel_wing_horizontal[row] = 0x00ff00
    time.sleep(0.3)

for row in range(len(pixel_wing_vertical)):
    pixels.fill(0x00000)
    pixel_wing_vertical[row] = 0xff00ff
    time.sleep(0.3)

Documentation

API documentation for this library can be found on Read the Docs <https://docs.circuitpython.org/projects/pixelmap/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_PixelMap/blob/HEAD/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.