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

# Import MQTT client.
from paho.mqtt import client as mqtt_client


logging.basicConfig(level=logging.DEBUG)

# MQTT credentials
#mqtt_username  = 'homeassistant' # MQTT client username
#mqtt_password = '3355' # MQTT client password
client_id = 'solarmonitor'  # unique client_id
mqtt_broker = "openwb-2"  # broker address, usually your HASS IP address

#set topics
topic_house_battery_soc = "openWB/bat/get/soc"
topic_house_battery_power = "openWB/bat/get/power"

topic_power_import_export = "openWB/counter/7/get/power"
topic_pv_power = "openWB/pv/8/get/power"

topic_house_power = "openWB/graph/lastlivevaluesJson" #house-power

topic_car_soc = "openWB/vehicle/4/get/soc"
topic_charge_point_power = "openWB/internal_chargepoint/0/get/powers"


try:
    # create the MQTT client
    client = mqtt_client.Client(client_id, protocol=mqtt_client.MQTTv31)  # * set a random string (max 23 chars)

    # client connection
    # client.username_pw_set(mqtt_username, mqtt_password)  # MQTT server credentials
    client.connect(mqtt_broker, 1883, 60)  # MQTT server address

    house_battery_soc = client.subscribe(topic_house_battery_soc)
    house_battery_power = client.subscribe(topic_house_battery_power)
    power_import_export = client.subscribe(topic_power_import_export)
    pv_power = client.subscribe(topic_pv_power)
    house_power = client.subscribe(topic_house_power)
    car_soc = client.subscribe(topic_car_soc)
    charge_point_power = client.subscribe(topic_charge_point_power)


    logging.info("epd2in13b_V3 Demo")
    
    epd = epd2in13b_V3.EPD()
    #logging.info("init and Clear")
    #epd.init()
    #epd.Clear()
    
    # 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, 16), 'Hausverbrauch', font = font16, fill = 0)
    drawblack.text((2, 32), 'Strom Import', font = font16, fill = 0)
    drawblack.text((2, 48), 'Batterie', font = font16, fill = 0)
    drawblack.text((2, 64), 'Batterie Entladen', font = font16, fill = 0)
    drawblack.text((2, 80), 'Auto Laden', font = font16, fill = 0)

    drawblack.text((100, 80), str(charge_point_power), 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()