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-il91874
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-il91874
To install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-il91874
Usage 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.show(g)
display.refresh()
print("refreshed")
time.sleep(120)
Contributing¶
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
Documentation¶
For information on building library documentation, please check out this guide.