1  # SPDX-FileCopyrightText: 2019 Limor Fried for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  """
 6  This example will figure out the current local time using the internet, and
 7  then draw out a count-up clock since an event occurred!
 8  Once the event is happening, a new graphic is shown
 9  """
10  import time
11  import board
12  from adafruit_pyportal import PyPortal
13  from adafruit_bitmap_font import bitmap_font
14  from adafruit_display_text.label import Label
15  
16  # The time of the thing!
17  EVENT_YEAR = 1972
18  EVENT_MONTH = 12
19  EVENT_DAY = 7
20  EVENT_HOUR = 5
21  EVENT_MINUTE = 55
22  # we'll make a python-friendly structure
23  event_time = time.struct_time((EVENT_YEAR, EVENT_MONTH, EVENT_DAY,
24                                 EVENT_HOUR, EVENT_MINUTE, 0,  # we don't track seconds
25                                 -1, -1, False))  # we dont know day of week/year or DST
26  
27  # determine the current working directory
28  # needed so we know where to find files
29  cwd = ("/"+__file__).rsplit('/', 1)[0]
30  # Initialize the pyportal object and let us know what data to fetch and where
31  # to display it
32  pyportal = PyPortal(status_neopixel=board.NEOPIXEL,
33                      default_bg=cwd+"/countup_background.bmp")
34  
35  big_font = bitmap_font.load_font(cwd+"/fonts/Helvetica-Bold-24.bdf")
36  big_font.load_glyphs(b'0123456789') # pre-load glyphs for fast printing
37  
38  years_position = (126, 15)
39  days_position = (13, 41)
40  hours_position = (118, 41)
41  minutes_position = (25, 68)
42  text_color = 0xFF0000
43  
44  text_areas = []
45  for pos in (years_position, days_position, hours_position, minutes_position):
46      textarea = Label(big_font, text='  ')
47      textarea.x = pos[0]
48      textarea.y = pos[1]
49      textarea.color = text_color
50      pyportal.splash.append(textarea)
51      text_areas.append(textarea)
52  refresh_time = None
53  
54  
55  while True:
56      # only query the online time once per hour (and on first run)
57      if (not refresh_time) or (time.monotonic() - refresh_time) > 3600:
58          try:
59              print("Getting time from internet!")
60              pyportal.get_local_time()
61              refresh_time = time.monotonic()
62          except RuntimeError as e:
63              print("Some error occured, retrying! -", e)
64              continue
65  
66      now = time.localtime()
67      print("Current time:", now)
68  
69      # We're going to do a little cheat here, since circuitpython can't
70      # track huge amounts of time, we'll calculate the delta years here
71      if now[0] > (EVENT_YEAR+1):  # we add one year to avoid half-years
72          years_since = now[0] - (EVENT_YEAR+1)
73          # and then set the event_time to not include the year delta
74          event_time = time.struct_time((EVENT_YEAR+years_since, EVENT_MONTH, EVENT_DAY,
75                                         EVENT_HOUR, EVENT_MINUTE, 0,  # we don't track seconds
76                                         -1, -1, False))  # we dont know day of week/year or DST
77      else:
78          years_since = 0
79      print(event_time)
80      since = time.mktime(now) - time.mktime(event_time)
81      print("Time since not including years (in sec):", since)
82      sec_since = since % 60
83      since //= 60
84      mins_since = since % 60
85      since //= 60
86      hours_since = since % 24
87      since //= 24
88      days_since = since % 365
89      since //= 365
90      years_since += since
91      print("%d years, %d days, %d hours, %d minutes and %s seconds" %
92            (years_since, days_since, hours_since, mins_since, sec_since))
93      text_areas[0].text = '{}'.format(years_since)  # set days textarea
94      text_areas[1].text = '{}'.format(days_since)  # set days textarea
95      text_areas[2].text = '{}'.format(hours_since) # set hours textarea
96      text_areas[3].text = '{}'.format(mins_since)  # set minutes textarea
97  
98      # update every 10 seconds
99      time.sleep(10)