415 lines
18 KiB
Python
415 lines
18 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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E-Paper Software (main script) for the 3-colour and 2-Colour E-Paper display
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A full and detailed breakdown for this code can be found in the wiki.
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If you have any questions, feel free to open an issue at Github.
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Copyright by aceisace
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"""
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from __future__ import print_function
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import calendar
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from datetime import datetime, date, timedelta
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from time import sleep
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from dateutil.rrule import *
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from dateutil.parser import parse
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import re
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import random
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import gc
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try:
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import feedparser
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except ImportError:
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print("Please install feedparser with: sudo pip3 install feedparser")
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print("and")
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print("pip3 install feedparser")
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try:
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import numpy as np
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except ImportError:
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print("Please install numpy with: sudo apt-get install python-numpy")
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from settings import *
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from icon_positions_locations import *
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from PIL import Image, ImageDraw, ImageFont, ImageOps
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import pyowm
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from ics import Calendar
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try:
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from urllib.request import urlopen
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except Exception as e:
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print("Something didn't work right, maybe you're offline?"+e.reason)
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if display_colours == "bwr":
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import epd7in5b
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epd = epd7in5b.EPD()
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if display_colours == "bw":
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import epd7in5
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epd = epd7in5.EPD()
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from calibration import calibration
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EPD_WIDTH = 640
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EPD_HEIGHT = 384
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font = ImageFont.truetype(path+'Assistant-Regular.ttf', 18)
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im_open = Image.open
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possible_update_values = [10, 15, 20, 30, 60]
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if int(update_interval) not in possible_update_values:
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print('Selected update-interval: ',update_interval, 'minutes')
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print('Please select an update interval from these values:', possible_update_values)
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raise ValueError
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"""Main loop starts from here"""
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def main():
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calibration_countdown = 60//int(update_interval) - 60//int(datetime.now().strftime("%M"))
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while True:
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time = datetime.now()
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hour = int(time.strftime("%-H"))
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month = int(time.now().strftime('%-m'))
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year = int(time.now().strftime('%Y'))
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mins = int(time.strftime("%M"))
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seconds = int(time.strftime("%S"))
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for i in range(1):
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print('_________Starting new loop___________'+'\n')
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"""Start by printing the date and time for easier debugging"""
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print('Date:', time.strftime('%a %-d %b %y'), 'Time: '+time.strftime('%H:%M')+'\n')
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"""At the hours specified in the settings file,
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calibrate the display to prevent ghosting"""
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if hour in calibration_hours:
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print('Current countdown:',calibration_countdown)
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calibration_countdown -= 1
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print('counts left until calibration:',calibration_countdown)
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if calibration_countdown is 1:
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calibration()
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print('Resetting Countdown')
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calibration_countdown = 60//int(update_interval)
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print('Calibration countdown:',calibration_countdown)
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"""Create a blank white page first"""
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image = Image.new('RGB', (EPD_HEIGHT, EPD_WIDTH), 'white')
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"""Add the icon with the current month's name"""
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image.paste(im_open(mpath+str(time.strftime("%B")+'.jpeg')), monthplace)
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"""Add the line seperating the weather and Calendar section"""
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image.paste(seperator, seperatorplace)
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"""Add weekday-icons (Mon, Tue...) and draw a circle on the
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current weekday"""
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if (week_starts_on == "Monday"):
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calendar.setfirstweekday(calendar.MONDAY)
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image.paste(weekmon, weekplace)
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image.paste(weekday, weekdaysmon[(time.strftime("%a"))], weekday)
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"""For those whose week starts on Sunday, change accordingly"""
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if (week_starts_on == "Sunday"):
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calendar.setfirstweekday(calendar.SUNDAY)
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image.paste(weeksun, weekplace)
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image.paste(weekday, weekdayssun[(time.strftime("%a"))], weekday)
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"""Using the built-in calendar function, draw icons for each
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number of the month (1,2,3,...28,29,30)"""
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cal = calendar.monthcalendar(time.year, time.month)
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for numbers in cal[0]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['a'+str(cal[0].index(numbers)+1)])
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for numbers in cal[1]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['b'+str(cal[1].index(numbers)+1)])
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for numbers in cal[2]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['c'+str(cal[2].index(numbers)+1)])
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for numbers in cal[3]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['d'+str(cal[3].index(numbers)+1)])
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for numbers in cal[4]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['e'+str(cal[4].index(numbers)+1)])
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if len(cal) == 6:
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for numbers in cal[5]:
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image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['f'+str(cal[5].index(numbers)+1)])
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"""Custom function to display text on the E-Paper.
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Tuple refers to the x and y coordinates of the E-Paper display,
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with (0, 0) being the top left corner of the display."""
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def write_text(box_width, box_height, text, tuple):
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text_width, text_height = font.getsize(text)
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if (text_width, text_height) > (box_width, box_height):
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raise ValueError('Sorry, your text is too big for the box')
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else:
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x = int((box_width / 2) - (text_width / 2))
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y = int((box_height / 2) - (text_height / 2))
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space = Image.new('RGB', (box_width, box_height), color='white')
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ImageDraw.Draw(space).text((x, y), text, fill='black', font=font)
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image.paste(space, tuple)
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"""Connect to Openweathermap API to fetch weather data"""
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print("Connecting to Openweathermap API servers...")
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owm = pyowm.OWM(api_key)
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if owm.is_API_online() is True:
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observation = owm.weather_at_place(location)
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print("weather data:")
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weather = observation.get_weather()
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weathericon = weather.get_weather_icon_name()
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Humidity = str(weather.get_humidity())
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cloudstatus = str(weather.get_clouds())
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weather_description = (str(weather.get_status()))
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if units == "metric":
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Temperature = str(int(weather.get_temperature(unit='celsius')['temp']))
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windspeed = str(int(weather.get_wind()['speed']))
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write_text(50, 35, Temperature + " °C", (334, 0))
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write_text(100, 35, windspeed+" km/h", (114, 0))
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if units == "imperial":
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Temperature = str(int(weather.get_temperature('fahrenheit')['temp']))
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windspeed = str(int(weather.get_wind()['speed']*0.621))
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write_text(50, 35, Temperature + " °F", (334, 0))
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write_text(100, 35, windspeed+" mph", (114, 0))
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if hours == "24":
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sunrisetime = str(datetime.fromtimestamp(int(weather.get_sunrise_time(timeformat='unix'))).strftime('%-H:%M'))
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sunsettime = str(datetime.fromtimestamp(int(weather.get_sunset_time(timeformat='unix'))).strftime('%-H:%M'))
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if hours == "12":
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sunrisetime = str(datetime.fromtimestamp(int(weather.get_sunrise_time(timeformat='unix'))).strftime('%-I:%M'))
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sunsettime = str(datetime.fromtimestamp(int(weather.get_sunset_time(timeformat='unix'))).strftime('%-I:%M'))
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print('Temperature: '+Temperature+' °C')
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print('Humidity: '+Humidity+'%')
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#print('Icon code: '+weathericon)
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print('weather-icon name: '+weathericons[weathericon])
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print('Wind speed: '+windspeed+'km/h')
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print('Sunrise-time: '+sunrisetime)
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print('Sunset time: '+sunsettime)
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print('Cloudiness: ' + cloudstatus+'%')
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print('Weather description: '+weather_description+'\n')
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"""Add the weather icon at the top left corner"""
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image.paste(im_open(wpath+weathericons[weathericon]+'.jpeg'), wiconplace)
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"""Add the temperature icon at it's position"""
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image.paste(tempicon, tempplace)
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"""Add the humidity icon and display the humidity"""
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image.paste(humicon, humplace)
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write_text(50, 35, Humidity + " %", (334, 35))
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"""Add the sunrise icon and display the sunrise time"""
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image.paste(sunriseicon, sunriseplace)
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write_text(50, 35, sunrisetime, (249, 0))
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"""Add the sunset icon and display the sunrise time"""
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image.paste(sunseticon, sunsetplace)
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write_text(50, 35, sunsettime, (249, 35))
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"""Add the wind icon at it's position"""
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image.paste(windicon, windiconspace)
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"""Add a short weather description"""
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write_text(144, 35, weather_description, (70, 35))
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else:
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"""If no response was received from the openweathermap
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api server, add the cloud with question mark"""
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image.paste(no_response, wiconplace)
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"""Algorithm for filtering and sorting events from your
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iCalendar/s"""
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print('Fetching events from your calendar'+'\n')
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events_this_month = []
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upcoming = []
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today = date.today()
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"""Create a time span using the events_max_range value (in days)
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to filter events in that range"""
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time_span = today + timedelta(days=int(events_max_range))
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for icalendars in ical_urls:
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decode = str(urlopen(icalendars).read().decode())
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fix_e_1 = decode.replace('BEGIN:VALARM\r\nACTION:NONE','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:')
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fix_e_2 = fix_e_1.replace('BEGIN:VALARM\r\nACTION:EMAIL','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:')
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# print(fix_e_2) #print iCal as string
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ical = Calendar(fix_e_2)
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for events in ical.events:
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if events.begin.date().month == today.month:
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if int((events.begin).format('D')) not in events_this_month:
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events_this_month.append(int((events.begin).format('D')))
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if today <= events.begin.date() <= time_span:
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upcoming.append({'date':events.begin.format('YYYY MM DD'), 'event':events.name})
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def takeDate(elem):
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return elem['date']
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upcoming.sort(key=takeDate)
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#print('Upcoming events:',upcoming) #Display fetched events
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def write_text_left(box_width, box_height, text, tuple):
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text_width, text_height = font.getsize(text)
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while (text_width, text_height) > (box_width, box_height):
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text=text[0:-1]
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text_width, text_height = font.getsize(text)
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y = int((box_height / 2) - (text_height / 2))
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space = Image.new('RGB', (box_width, box_height), color='white')
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ImageDraw.Draw(space).text((0, y), text, fill='black', font=font)
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image.paste(space, tuple)
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"""Write event dates and names on the E-Paper"""
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if additional_feature == "events":
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if len(cal) == 5:
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del upcoming[6:]
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for dates in range(len(upcoming)):
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readable_date = datetime.strptime(upcoming[dates]['date'], '%Y %m %d').strftime('%-d %b')
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write_text(70, 25, readable_date, date_positions['d'+str(dates+1)])
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for events in range(len(upcoming)):
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write_text_left(314, 25, (upcoming[events]['event']), event_positions['e'+str(events+1)])
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if len(cal) == 6:
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del upcoming[4:]
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for dates in range(len(upcoming)):
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readable_date = datetime.strptime(upcoming[dates]['date'], '%Y %m %d').strftime('%-d %b')
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write_text(70, 25, readable_date, date_positions['d'+str(dates+3)])
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for events in range(len(upcoming)):
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write_text_left(314, 25, (upcoming[events]['event']), event_positions['e'+str(events+3)])
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"""Add rss-feeds at the bottom section of the Calendar"""
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if additional_feature == "rss":
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def multiline_text(text, max_width):
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lines = []
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if font.getsize(text)[0] <= max_width:
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lines.append(text)
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else:
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words = text.split(' ')
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i = 0
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while i < len(words):
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line = ''
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while i < len(words) and font.getsize(line + words[i])[0] <= max_width:
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line = line + words[i] + " "
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i += 1
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if not line:
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line = words[i]
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i += 1
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lines.append(line)
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return lines
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rss_feed = []
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for feeds in rss_feeds:
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text = feedparser.parse(feeds)
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for posts in text.entries:
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rss_feed.append(posts.title)
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random.shuffle(rss_feed)
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news = []
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if len(cal) == 5:
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del rss_feed[:6]
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if len(cal) == 6:
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del rss_feed[:4]
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for title in range(len(rss_feeds)):
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news.append(multiline_text(rss_feed[title], 384))
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news = [j for i in news for j in i]
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if len(cal) == 5:
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if len(news) > 6:
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del news[6:]
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for lines in range(len(news)):
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write_text_left(384, 25, news[lines], rss_places['line_'+str(lines+1)])
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if len(cal) == 6:
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if len(news) > 4:
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del news[4:]
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for lines in range(len(news)):
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write_text_left(384, 25, news[lines], rss_places['line_'+str(lines+3)])
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"""Draw smaller squares on days with events"""
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for numbers in events_this_month:
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if numbers in cal[0]:
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image.paste(eventicon, positions['a'+str(cal[0].index(numbers)+1)], eventicon)
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if numbers in cal[1]:
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image.paste(eventicon, positions['b'+str(cal[1].index(numbers)+1)], eventicon)
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if numbers in cal[2]:
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image.paste(eventicon, positions['c'+str(cal[2].index(numbers)+1)], eventicon)
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if numbers in cal[3]:
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image.paste(eventicon, positions['d'+str(cal[3].index(numbers)+1)], eventicon)
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if numbers in cal[4]:
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image.paste(eventicon, positions['e'+str(cal[4].index(numbers)+1)], eventicon)
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if len(cal) == 6:
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if numbers in cal[5]:
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image.paste(eventicon, positions['f'+str(cal[5].index(numbers)+1)], eventicon)
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"""Draw a larger square on today's date"""
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today = time.day
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if today in cal[0]:
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image.paste(dateicon, positions['a'+str(cal[0].index(today)+1)], dateicon)
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if today in cal[1]:
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image.paste(dateicon, positions['b'+str(cal[1].index(today)+1)], dateicon)
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if today in cal[2]:
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image.paste(dateicon, positions['c'+str(cal[2].index(today)+1)], dateicon)
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if today in cal[3]:
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image.paste(dateicon, positions['d'+str(cal[3].index(today)+1)], dateicon)
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if today in cal[4]:
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image.paste(dateicon, positions['e'+str(cal[4].index(today)+1)], dateicon)
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if len(cal) == 6:
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if today in cal[5]:
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image.paste(dateicon, positions['f'+str(cal[5].index(today)+1)], dateicon)
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"""
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Map all pixels of the generated image to red, white and black
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so that the image can be displayed 'correctly' on the E-Paper
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"""
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buffer = np.array(image)
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r,g,b = buffer[:,:,0], buffer[:,:,1], buffer[:,:,2]
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if display_colours == "bwr":
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buffer[np.logical_and(r > 240, g > 240)] = [255,255,255] #white
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buffer[np.logical_and(r > 240, g < 240)] = [255,0,0] #red
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buffer[np.logical_and(r != 255, r ==g )] = [0,0,0] #black
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if display_colours == "bw":
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buffer[np.logical_and(r > 240, g > 240)] = [255,255,255] #white
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buffer[g < 255] = [0,0,0] #black
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improved_image = Image.fromarray(buffer).rotate(270, expand=True)
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print('Initialising E-Paper Display')
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epd.init()
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sleep(5)
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print('Converting image to data and sending it to the display')
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epd.display_frame(epd.get_frame_buffer(improved_image))
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print('Data sent successfully')
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print('______Powering off the E-Paper until the next loop______'+'\n')
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epd.sleep()
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del events_this_month[:]
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del upcoming[:]
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del rss_feed[:]
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del news[:]
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del buffer
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del image
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del improved_image
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gc.collect()
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for i in range(1):
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timings = []
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updates_per_hour = 60//int(update_interval)
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for times in range(updates_per_hour):
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interval = 60-(times*int(update_interval))
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if interval >= mins:
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time_left = (mins-interval)*(-1)
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timings.append(time_left)
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next_update = min(timings)*60 + (60-seconds)
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print(min(timings),'Minutes and ', (60-seconds),'Seconds left until next loop')
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del timings
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print('sleeping for',next_update, 'seconds')
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sleep(next_update)
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if __name__ == '__main__':
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main()
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