https://github.com/adafruit/adafruit_circuitpython_il91874

CircuitPython `displayio` driver for IL91874-based ePaper displays
https://github.com/adafruit/adafruit_circuitpython_il91874

circuitpython displayio epaper epd hacktoberfest il91874

Last synced: 3 months ago
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CircuitPython `displayio` driver for IL91874-based ePaper displays

• Host: GitHub
• URL: https://github.com/adafruit/adafruit_circuitpython_il91874
• Owner: adafruit
• License: mit
• Created: 2019-08-04T20:28:57.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2024-04-01T14:29:13.000Z (9 months ago)
• Last Synced: 2024-10-07T10:56:11.341Z (3 months ago)
• Topics: circuitpython, displayio, epaper, epd, hacktoberfest, il91874
• Language: Python
• Size: 86.9 KB
• Stars: 2
• Watchers: 20
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
Introduction

============

.. image:: https://readthedocs.org/projects/adafruit-circuitpython-il91874/badge/?version=latest

    :target: https://docs.circuitpython.org/projects/il91874/en/latest/

    :alt: Documentation Status

.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg

    :target: https://adafru.it/discord

    :alt: Discord

.. image:: https://github.com/adafruit/Adafruit_CircuitPython_IL91874/workflows/Build%20CI/badge.svg

    :target: https://github.com/adafruit/Adafruit_CircuitPython_IL91874/actions

    :alt: Build Status

.. image:: https://img.shields.io/badge/code%20style-black-000000.svg

    :target: https://github.com/psf/black

    :alt: Code Style: Black

CircuitPython `displayio` driver for IL91874-based ePaper displays

Dependencies

=============

This driver depends on:

* `Adafruit CircuitPython `_

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:

.. code-block:: shell

    pip3 install adafruit-circuitpython-il91874

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

.. code-block:: shell

    sudo pip3 install adafruit-circuitpython-il91874

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-il91874

Usage Example

=============

.. code-block:: python

    """Simple test script for 2.7" 264x176 Tri-Color display shield

    Supported products:

      * Adafruit 2.7" Tri-Color ePaper Display Shield

        * https://www.adafruit.com/product/4229

      """

    import time

    import board

    import busio

    import displayio

    import adafruit_il91874

    displayio.release_displays()

    spi = board.SPI()

    epd_cs = board.D10

    epd_dc = board.D9

    display_bus = displayio.FourWire(spi, command=epd_dc, chip_select=epd_cs, baudrate=1000000)

    time.sleep(1)

    display = adafruit_il91874.IL91874(display_bus, width=264, height=176, highlight_color=0xff0000, rotation=90)

    g = displayio.Group()

    f = open("/display-ruler.bmp", "rb")

    pic = displayio.OnDiskBitmap(f)

    # CircuitPython 6 & 7 compatible

    t = displayio.TileGrid(

        pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())

    )

    # CircuitPython 7 compatible only

    # t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)

    g.append(t)

    display.root_group = g

    display.refresh()

    print("refreshed")

    time.sleep(120)

Documentation

=============

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

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

Contributing

============

Contributions are welcome! Please read our `Code of Conduct

`_

before contributing to help this project stay welcoming.