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CircuitPython displayio drivers for IL0398 driven e-paper displays

Project description

Introduction

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CircuitPython displayio drivers for IL0398 driven e-paper 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-il0398

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

sudo pip3 install adafruit-circuitpython-il0398

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-il0398

Usage Example

"""Simple test script for 4.2" 400x300 black and white displays.

Supported products:
  * WaveShare 4.2" Black and White
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper.htm
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper-module.htm
  """

import time
import board
import displayio
import adafruit_il0398

displayio.release_displays()

# This pinout works on a Feather M4 and may need to be altered for other boards.
spi = board.SPI() # Uses SCK and MOSI
epd_cs = board.D9
epd_dc = board.D10
epd_reset = board.D5
epd_busy = board.D6

display_bus = displayio.FourWire(spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset,
                                 baudrate=1000000)
time.sleep(1)

display = adafruit_il0398.IL0398(display_bus, width=400, height=300, seconds_per_frame=20,
                                 busy_pin=epd_busy)

g = displayio.Group()

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

pic = displayio.OnDiskBitmap(f)
t = displayio.TileGrid(pic, pixel_shader=displayio.ColorConverter())
g.append(t)

display.show(g)

display.refresh()

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.

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