99 lines
3.6 KiB
Python
99 lines
3.6 KiB
Python
# SPDX-FileCopyrightText: 2019 Limor Fried for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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This example will figure out the current local time using the internet, and
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then draw out a count-up clock since an event occurred!
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Once the event is happening, a new graphic is shown
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"""
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import time
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import board
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from adafruit_pyportal import PyPortal
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from adafruit_bitmap_font import bitmap_font
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from adafruit_display_text.label import Label
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# The time of the thing!
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EVENT_YEAR = 1972
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EVENT_MONTH = 12
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EVENT_DAY = 7
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EVENT_HOUR = 5
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EVENT_MINUTE = 55
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# we'll make a python-friendly structure
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event_time = time.struct_time((EVENT_YEAR, EVENT_MONTH, EVENT_DAY,
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EVENT_HOUR, EVENT_MINUTE, 0, # we don't track seconds
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-1, -1, False)) # we dont know day of week/year or DST
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# determine the current working directory
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# needed so we know where to find files
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cwd = ("/"+__file__).rsplit('/', 1)[0]
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# Initialize the pyportal object and let us know what data to fetch and where
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# to display it
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pyportal = PyPortal(status_neopixel=board.NEOPIXEL,
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default_bg=cwd+"/countup_background.bmp")
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big_font = bitmap_font.load_font(cwd+"/fonts/Helvetica-Bold-24.bdf")
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big_font.load_glyphs(b'0123456789') # pre-load glyphs for fast printing
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years_position = (126, 15)
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days_position = (13, 41)
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hours_position = (118, 41)
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minutes_position = (25, 68)
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text_color = 0xFF0000
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text_areas = []
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for pos in (years_position, days_position, hours_position, minutes_position):
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textarea = Label(big_font, text=' ')
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textarea.x = pos[0]
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textarea.y = pos[1]
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textarea.color = text_color
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pyportal.splash.append(textarea)
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text_areas.append(textarea)
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refresh_time = None
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while True:
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# only query the online time once per hour (and on first run)
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if (not refresh_time) or (time.monotonic() - refresh_time) > 3600:
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try:
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print("Getting time from internet!")
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pyportal.get_local_time()
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refresh_time = time.monotonic()
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except RuntimeError as e:
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print("Some error occured, retrying! -", e)
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continue
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now = time.localtime()
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print("Current time:", now)
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# We're going to do a little cheat here, since circuitpython can't
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# track huge amounts of time, we'll calculate the delta years here
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if now[0] > (EVENT_YEAR+1): # we add one year to avoid half-years
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years_since = now[0] - (EVENT_YEAR+1)
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# and then set the event_time to not include the year delta
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event_time = time.struct_time((EVENT_YEAR+years_since, EVENT_MONTH, EVENT_DAY,
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EVENT_HOUR, EVENT_MINUTE, 0, # we don't track seconds
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-1, -1, False)) # we dont know day of week/year or DST
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else:
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years_since = 0
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print(event_time)
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since = time.mktime(now) - time.mktime(event_time)
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print("Time since not including years (in sec):", since)
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sec_since = since % 60
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since //= 60
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mins_since = since % 60
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since //= 60
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hours_since = since % 24
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since //= 24
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days_since = since % 365
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since //= 365
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years_since += since
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print("%d years, %d days, %d hours, %d minutes and %s seconds" %
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(years_since, days_since, hours_since, mins_since, sec_since))
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text_areas[0].text = '{}'.format(years_since) # set days textarea
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text_areas[1].text = '{}'.format(days_since) # set days textarea
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text_areas[2].text = '{}'.format(hours_since) # set hours textarea
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text_areas[3].text = '{}'.format(mins_since) # set minutes textarea
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# update every 10 seconds
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time.sleep(10)
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