116 lines
3.3 KiB
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116 lines
3.3 KiB
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Introduction
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============
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.. image:: https://readthedocs.org/projects/adafruit-circuitpython-il91874/badge/?version=latest
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:target: https://docs.circuitpython.org/projects/il91874/en/latest/
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:alt: Documentation Status
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.. image:: https://img.shields.io/discord/327254708534116352.svg
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:target: https://adafru.it/discord
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:alt: Discord
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.. image:: https://github.com/adafruit/Adafruit_CircuitPython_IL91874/workflows/Build%20CI/badge.svg
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:target: https://github.com/adafruit/Adafruit_CircuitPython_IL91874/actions
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:alt: Build Status
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CircuitPython `displayio` driver for IL91874-based ePaper displays
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Dependencies
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=============
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This driver depends on:
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* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
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Please ensure all dependencies are available on the CircuitPython filesystem.
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This is easily achieved by downloading
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`the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>`_.
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Installing from PyPI
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=====================
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On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
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PyPI <https://pypi.org/project/adafruit-circuitpython-il91874/>`_. To install for current user:
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.. code-block:: shell
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pip3 install adafruit-circuitpython-il91874
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To install system-wide (this may be required in some cases):
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.. code-block:: shell
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sudo pip3 install adafruit-circuitpython-il91874
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To install in a virtual environment in your current project:
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.. code-block:: shell
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mkdir project-name && cd project-name
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python3 -m venv .env
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source .env/bin/activate
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pip3 install adafruit-circuitpython-il91874
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Usage Example
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=============
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.. code-block:: python
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"""Simple test script for 2.7" 264x176 Tri-Color display shield
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Supported products:
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* Adafruit 2.7" Tri-Color ePaper Display Shield
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* https://www.adafruit.com/product/4229
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"""
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import time
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import board
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import busio
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import displayio
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import adafruit_il91874
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displayio.release_displays()
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spi = board.SPI()
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epd_cs = board.D10
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epd_dc = board.D9
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display_bus = displayio.FourWire(spi, command=epd_dc, chip_select=epd_cs, baudrate=1000000)
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time.sleep(1)
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display = adafruit_il91874.IL91874(display_bus, width=264, height=176, highlight_color=0xff0000, rotation=90)
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g = displayio.Group()
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f = open("/display-ruler.bmp", "rb")
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pic = displayio.OnDiskBitmap(f)
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# CircuitPython 6 & 7 compatible
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t = displayio.TileGrid(
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pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())
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)
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# CircuitPython 7 compatible only
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# t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
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g.append(t)
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display.show(g)
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display.refresh()
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print("refreshed")
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time.sleep(120)
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Documentation
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=============
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API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/il91874/en/latest/>`_.
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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>`_.
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Contributing
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============
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Contributions are welcome! Please read our `Code of Conduct
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<https://github.com/adafruit/Adafruit_CircuitPython_IL91874/blob/main/CODE_OF_CONDUCT.md>`_
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before contributing to help this project stay welcoming.
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