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CircuitPython library for IS31FL3731 charlieplex LED matrices.

Project description


Documentation Status Discord Build Status Code Style: Black

CircuitPython driver for the IS31FL3731 charlieplex IC.

This driver supports the following hardware:


This driver depends on:

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-is31fl3731

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

sudo pip3 install adafruit-circuitpython-is31fl3731

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-is31fl3731

Usage Example


from adafruit_is31fl3731.matrix import Matrix
import board
import busio
with busio.I2C(board.SCL, board.SDA) as i2c:
    display = Matrix(i2c)

Charlie Wing:

from adafruit_is31fl3731.charlie_wing import CharlieWing
import board
import busio
with busio.I2C(board.SCL, board.SDA) as i2c:
    display = CharlieWing(i2c)

    # Turn off pixel 4,4, change its brightness and turn it back on
    display.pixel(4, 4, 0)   # Turn off.
    display.pixel(4, 4, 50)  # Low brightness (50)
    display.pixel(4, 4, 192) # Higher brightness (192)


API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.


Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

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