Waveshare E-Paper 2.13" V2 display driver for devices running Micropython

This library is based on the work of Mike Causer and Dominik Kapusta.

When I was looking for a driver for couple of Waveshare 2.13" V2 red-black displays, I could not find anything usable. The example in Mike's repo is only partially working, and when I stumbled upon great library for 1.54" display, I decided to rework the lib a bit.

Features

• Drawing lines (horizontal, vertical and between two arbitrary points)
• Drawing rectangles and circles, both regular and filled
• Drawing images from raw data (list or bytes object)
• Adjusting screen orientation
• Power saving mode (~30uA)

Usage

Initializing

The e-paper display uses 6 data lines for communication:

from machine import Pin, SPI
from lib import epd2in13
# SPI on ESP32 (Hardware SPI #2)
sck = Pin(18)
miso = Pin(19)  # NOT USED
mosi = Pin(23)
# Display config
dc = Pin(2)
cs = Pin(4)
rst = Pin(19)  # NOT USED
busy = Pin(5)
spi = SPI(2, baudrate=2000000, polarity=0, phase=0, bits=8, firstbit=0, sck=sck, miso=miso, mosi=mosi)
epd = epd2in13.EPD(spi, cs, dc, rst, busy)
epd.init()

On my module there is Reset line, and MISO is obviously not used in the communication.

Displaying data

Please see main.py for an example usage. In order to use fonts, copy them to fonts directory, or if you feel adventurous, freeze them in firmware. See this great blog post from Dominik for more info on how to do it.