adafruit-circuitpython-epd

Introduction

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This library is for using CircuitPython with e-ink displays with built in SRAM.

Dependencies

This driver depends on:

• Adafruit CircuitPython <https://github.com/adafruit/circuitpython>_
• Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>_
• font5x8.bin found in the examples bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>_

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>_.

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI <https://pypi.org/project/adafruit-circuitpython-epd/>_. To install for current user:

.. code-block:: shell

pip3 install adafruit-circuitpython-epd

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

.. code-block:: shell

sudo pip3 install adafruit-circuitpython-epd

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-epd

Usage Example

.. code-block:: python

import digitalio
import busio
import board
from adafruit_epd.epd import Adafruit_EPD
from adafruit_epd.il0373 import Adafruit_IL0373

# create the spi device and pins we will need
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
ecs = digitalio.DigitalInOut(board.D12)
dc = digitalio.DigitalInOut(board.D11)
srcs = digitalio.DigitalInOut(board.D10)    # can be None to use internal memory
rst = digitalio.DigitalInOut(board.D9)    # can be None to not use this pin
busy = digitalio.DigitalInOut(board.D5)   # can be None to not use this pin

# give them all to our driver
print("Creating display")
display = Adafruit_IL0373(104, 212, spi,          # 2.13" Tri-color display
                          cs_pin=ecs, dc_pin=dc, sramcs_pin=srcs,
                          rst_pin=rst, busy_pin=busy)

display.rotation = 1

# clear the buffer
print("Clear buffer")
display.fill(Adafruit_EPD.WHITE)
display.pixel(10, 100, Adafruit_EPD.BLACK)

print("Draw Rectangles")
display.fill_rect(5, 5, 10, 10, Adafruit_EPD.RED)
display.rect(0, 0, 20, 30, Adafruit_EPD.BLACK)

print("Draw lines")
display.line(0, 0, display.width-1, display.height-1, Adafruit_EPD.BLACK)
display.line(0, display.height-1, display.width-1, 0, Adafruit_EPD.RED)

print("Draw text")
display.text('hello world', 25, 10, Adafruit_EPD.BLACK)
display.display()

Documentation

API documentation for this library can be found on Read the Docs <https://docs.circuitpython.org/projects/epd/en/latest/>_.

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>_.

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/adafruit/Adafruit_CircuitPython_EPD/blob/main/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.