CircuitPython `displayio` driver for IL91874-based ePaper displays
Project description
Introduction
CircuitPython displayio driver for IL91874-based ePaper displays
Dependencies
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-il91874To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-il91874To 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-il91874Usage Example
"""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.
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