kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
79 wiersze
2.6 KiB
Python
79 wiersze
2.6 KiB
Python
# clock_batt.py Battery powered clock demo for Pyboard/Adafruit sharp 2.7" display
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# Copyright (c) 2020 Peter Hinch
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# Released under the MIT license. See LICENSE
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# HARDWARE
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# This assumes a Pybaord D in WBUS-DIP28 and powered by a LiPo cell
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# WIRING
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# Pyb SSD
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# Vin Vin Pyboard D: Vin on DIP28 is an output when powered by LiPo
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# Gnd Gnd
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# Y8 DI
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# Y6 CLK
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# Y5 CS
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# Demo of initialisation procedure designed to minimise risk of memory fail
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# when instantiating the frame buffer. The aim is to do this as early as
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# possible before importing other modules.
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from color_setup import ssd # Create a display instance
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import upower
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from gui.core.nanogui import refresh
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from gui.widgets.label import Label
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from gui.widgets.dial import Dial, Pointer
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import pyb
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import cmath
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from gui.core.writer import Writer
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# Fonts for Writer
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import gui.fonts.freesans20 as font_small
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import gui.fonts.arial35 as font_large
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refresh(ssd) # Initialise display.
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def aclock():
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rtc = pyb.RTC()
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uv = lambda phi : cmath.rect(1, phi) # Return a unit vector of phase phi
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pi = cmath.pi
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days = ('Mon', 'Tue', 'Wed', 'Thur', 'Fri', 'Sat', 'Sun')
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months = ('Jan', 'Feb', 'March', 'April', 'May', 'June', 'July',
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'Aug', 'Sept', 'Oct', 'Nov', 'Dec')
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# Instantiate Writer
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Writer.set_textpos(ssd, 0, 0) # In case previous tests have altered it
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wri = Writer(ssd, font_small, verbose=False)
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wri.set_clip(True, True, False)
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wri_tim = Writer(ssd, font_large, verbose=False)
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wri_tim.set_clip(True, True, False)
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# Instantiate displayable objects
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dial = Dial(wri, 2, 2, height = 215, ticks = 12, bdcolor=None, pip=True)
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lbltim = Label(wri_tim, 50, 230, '00.00.00')
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lbldat = Label(wri, 100, 230, 100)
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hrs = Pointer(dial)
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mins = Pointer(dial)
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hstart = 0 + 0.7j # Pointer lengths and position at top
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mstart = 0 + 0.92j
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while True:
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t = rtc.datetime() # (year, month, day, weekday, hours, minutes, seconds, subseconds)
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hang = -t[4]*pi/6 - t[5]*pi/360 # Angles of hands in radians
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mang = -t[5] * pi/30
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if abs(hang - mang) < pi/360: # Avoid visually confusing overlap of hands
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hang += pi/30 # by making hr hand lag slightly
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hrs.value(hstart * uv(hang))
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mins.value(mstart * uv(mang))
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lbltim.value('{:02d}.{:02d}'.format(t[4], t[5]))
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lbldat.value('{} {} {} {}'.format(days[t[3] - 1], t[2], months[t[1] - 1], t[0]))
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refresh(ssd)
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# Power saving: only refresh every 30s
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for _ in range(30):
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upower.lpdelay(1000)
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ssd.update() # Toggle VCOM
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aclock()
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