e-paper-display/examples/solar-monitoring.py

#!/usr/bin/python
# -*- coding:utf-8 -*-
import sys
import os
picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'pic')
libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
    sys.path.append(libdir)

import logging
from waveshare_epd import epd2in13b_V3
import time
from PIL import Image,ImageDraw,ImageFont
import traceback

logging.basicConfig(level=logging.DEBUG)

try:
    logging.info("epd2in13b_V3 Demo")
    
    epd = epd2in13b_V3.EPD()
    logging.info("init and Clear")
    epd.init()
    epd.Clear()
    time.sleep(1)
    
    # Drawing on the image
    logging.info("Drawing")    
    font16 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 16)
    font18 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 18)
    
    # Drawing on the Horizontal image
    logging.info("1.Drawing on the Horizontal image...") 
    HBlackimage = Image.new('1', (epd.height, epd.width), 255)  # 298*126
    HRYimage = Image.new('1', (epd.height, epd.width), 255)  # 298*126  ryimage: red or yellow image  
    drawblack = ImageDraw.Draw(HBlackimage)
    drawry = ImageDraw.Draw(HRYimage)
    drawblack.text((2, 0), 'PV Production', font = font16, fill = 0)
    drawblack.text((2, 20), 'Hausverbrauch', font = font16, fill = 0)
    drawblack.text((2, 40), 'Strom Import', font = font16, fill = 0)
    drawblack.text((2, 60), 'Batterie', font = font16, fill = 0)
    drawblack.text((2, 80), 'Batterie Entladen', font = font16, fill = 0)
    epd.display(epd.getbuffer(HBlackimage), epd.getbuffer(HRYimage))
    
    
    #logging.info("Clear...")
    #epd.init()
    #epd.Clear()
    
    logging.info("Goto Sleep...")
    epd.sleep()
        
except IOError as e:
    logging.info(e)
    
except KeyboardInterrupt:    
    logging.info("ctrl + c:")
    epd2in13b_V3.epdconfig.module_exit()
    exit()