New update with lots of improvements
Added RSS-feedparser. Added support for user-defined display-update intervals. Removed support for recurring events (temporarily). Imporved processing time for the generated image form nearly 30 seconds to less than a second. Improved readability of docstrings.
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@@ -14,6 +14,20 @@ 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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@@ -41,42 +55,58 @@ 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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"""At the following hours (midnight, midday and 6 pm), perform
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a calibration of the display's colours"""
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if hour is 0 or hour is 12 or hour is 18:
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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 == 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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print('Date:', time.strftime('%a %-d %b %y')+', Time: '+time.strftime('%H:%M')+'\n')
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"""Create a blank white page, for debugging, change mode to
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to 'RGB' and and save the image by uncommenting the image.save
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line at the bottom"""
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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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"""Draw the icon with the current month's name"""
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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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"""Draw a line seperating the weather and Calendar section"""
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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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"""Draw the icons with the weekday-names (Mon, Tue...) and
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draw a circle on the current weekday"""
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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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@@ -85,7 +115,6 @@ def main():
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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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#print(cal) #-uncomment for debugging with incorrect dates
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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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@@ -115,7 +144,7 @@ def main():
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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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""" Handling Openweathermap API"""
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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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@@ -149,7 +178,7 @@ def main():
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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('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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@@ -157,47 +186,51 @@ def main():
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print('Cloudiness: ' + cloudstatus+'%')
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print('Weather description: '+weather_description+'\n')
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"""Drawing the fetched weather icon"""
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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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"""Drawing the fetched temperature"""
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"""Add the temperature icon at it's position"""
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image.paste(tempicon, tempplace)
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"""Drawing the fetched humidity"""
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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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"""Drawing the fetched sunrise time"""
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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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"""Drawing the fetched sunset time"""
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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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"""Drawing the wind icon"""
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"""Add the wind icon at it's position"""
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image.paste(windicon, windiconspace)
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"""Write a short weather description"""
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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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"""Filter upcoming events from your iCalendar/s"""
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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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# uncomment line below to display your calendar in ical format
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# print(fix_e_2)
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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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@@ -205,37 +238,13 @@ def main():
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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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## if re.search('RRULE',str(events)) is not None:
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## r = re.search('RRULE:(.+?)\n',str(events))
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## r_start = re.search('DTSTART:(.+?)\n',str(events))
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## if time.now().month == 12:
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## r_string=(r.group(1).rstrip()+';UNTIL='+'%04d%02d%02d'+'T000000Z') % (time.now().year+1, 1, 1)
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## else:
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## r_string=(r.group(1).rstrip()+';UNTIL='+'%04d%02d%02d'+'T000000Z') % (time.now().year, time.now().month+1, 1)
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## rule=rrulestr(r_string,dtstart=parse(r_start.group(1)))
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## for i in rule:
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## if i.year == time.now().year and i.month == time.now().month and i.day >= time.now().day:
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## upcoming.append({'date':str(time.now().year) + " " + time.now().strftime('%m')+ " " + str(i.day).zfill(2), 'event':events.name})
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## if i.day not in events_this_month:
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## events_this_month.append(i.day)
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## # uncomment this line to see fetched recurring events
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## print ("Appended recurring event: " + events.name + " on " + str(time.now().year) + " " + time.now().strftime('%m')+ " " + str(i.day).zfill(2))
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## else:
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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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# uncomment the following 2 lines to display the fetched events
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# from your iCalendar
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# print('Upcoming events:')
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# print(upcoming)
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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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@@ -248,6 +257,7 @@ def main():
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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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@@ -266,6 +276,59 @@ def main():
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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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@@ -299,64 +362,53 @@ def main():
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image.paste(dateicon, positions['f'+str(cal[5].index(today)+1)], dateicon)
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"""
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The function below will take care of displaying the image correctly on E-Paper-Displays. It works by analysing
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2 bands of each pixel (for example, red and green) and re-writes the values in a way so the image only contains
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3 colours, without anytyhing in between. As a result, the image looks much more better on E-Paper.
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Currently in beta-phase.
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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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def display_corrected_image(image):
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print('Improving the colours of the generated image.')
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# Uncomment following line to save the unprocessed image
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# image.save(path+'before.bmp')
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width, height = image.size
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pixels = image.load()
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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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for x in range(width):
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for y in range(height):
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pixel = image.getpixel((x, y))
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red = pixel[0]
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green = pixel[1]
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if red > 240 and green > 240: #white
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pixels[x, y] = (255, 255, 255)
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elif red > 250 and green < 180: #red
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pixels[x, y] = (255, 0, 0)
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else:
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pixels[x, y] = (0, 0, 0)
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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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for x in range(width):
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for y in range(height):
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pixel = image.getpixel((x, y))
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red = pixel[0]
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green = pixel[1]
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if red > 240 and green > 240: #white
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pixels[x, y] = (255, 255, 255)
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else:
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pixels[x, y] = (0, 0, 0)
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print('Conversion finished. Enjoy a crisp image on the E-Paper')
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# Uncomment following line to save the processed image
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# image.save(path+'after.bmp')
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buffer[np.logical_and(r > 240, g > 240)] = [255,255,255] #white
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buffer[r < 240] = [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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print('This will take about a minute...'+'\n')
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epd.display_frame(epd.get_frame_buffer(image.rotate(270, expand=1)))
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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 image
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display_corrected_image(image)
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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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nexthour = ((60 - int(time.strftime("%-M")))*60) - (int(time.strftime("%-S")))
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sleep(nexthour)
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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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Block a user