kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
114 wiersze
3.4 KiB
Python
114 wiersze
3.4 KiB
Python
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# epd29_sync.py Demo of synchronous code on 2.9" EPD display
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2020 Peter Hinch
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# color_setup must set landcsape True, asyn False and must not set demo_mode
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from math import pi, sin
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import upower
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import machine
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import pyb
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pon = machine.Pin('Y5', machine.Pin.OUT_PP, value=1) # Power on before instantiating display
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upower.lpdelay(1000) # Give the valves (tubes) time to warm up :)
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from color_setup import ssd # Instantiate
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from gui.core.writer import Writer
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from gui.core.nanogui import refresh
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from gui.core.fplot import CartesianGraph, Curve
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from gui.widgets.meter import Meter
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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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# Fonts
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import gui.fonts.arial10 as arial10
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import gui.fonts.freesans20 as large
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wri = Writer(ssd, arial10, verbose=False)
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wri.set_clip(False, False, False)
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wri_large = Writer(ssd, large, verbose=False)
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wri_large.set_clip(False, False, False)
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def graph():
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row, col, ht, wd = 5, 140, 75, 150
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def populate():
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x = -0.998
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while x < 1.01:
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z = 6 * pi * x
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y = sin(z) / z
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yield x, y
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x += 0.05
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g = CartesianGraph(wri, row, col, height = ht, width = wd, bdcolor=False)
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curve2 = Curve(g, None, populate())
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Label(wri, row + ht + 5, col - 10, '-2.0 t: secs')
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Label(wri, row + ht + 5, col - 8 + int(wd//2), '0.0')
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Label(wri, row + ht + 5, col - 10 + wd, '2.0')
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def compass():
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dial = Dial(wri, 5, 5, height = 75, ticks = 12, bdcolor=None,
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label='Direction', style = Dial.COMPASS)
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ptr = Pointer(dial)
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ptr.value(1 + 1j)
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def meter():
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m = Meter(wri, 5, 100, height = 75, divisions = 4,
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label='Peak', style=Meter.BAR, legends=('0', '50', '100'))
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m.value(0.72)
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def labels():
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row = 100
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col = 0
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Label(wri_large, row, col, 'Seismograph')
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col = 140
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Label(wri, row, col + 0, 'Event time')
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Label(wri, row, col + 60, '01:35', bdcolor=None)
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Label(wri, row, col + 95, 'UTC')
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row = 115
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Label(wri, row, col + 0, 'Event date')
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Label(wri, row, col + 60, '6th Jan 2021', bdcolor=None)
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# Populate the display - GUI and Writer code goes here
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def populate():
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graph()
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compass()
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meter()
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labels()
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# Initialise GUI clearing display. Populate frame buffer. Update diplay and
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# leave in power down state ready for phsyical loss of power
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def show():
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# Low power version of .wait_until_ready()
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def wait_ready():
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while not ssd.ready():
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upower.lpdelay(1000)
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refresh(ssd, True) # Init and clear. busy will go True for ~5s
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populate()
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wait_ready() # wait for display ready (seconds)
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refresh(ssd)
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wait_ready()
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ssd.sleep() # Put into "off" state
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# Handle initial power up and subsequent wakeup.
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rtc = pyb.RTC()
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# If we have a backup battery clear down any setting from a previously running program
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rtc.wakeup(None)
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reason = machine.reset_cause() # Why have we woken?
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red = pyb.LED(1)
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if reason in (machine.PWRON_RESET, machine.HARD_RESET, machine.SOFT_RESET):
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# Code to run when the application is first started
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aa = upower.Alarm('a')
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aa.timeset(second = 39)
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ab = upower.Alarm('b')
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ab.timeset(second = 9)
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elif reason == machine.DEEPSLEEP_RESET:
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# Display on. Pin is pulled down by 2K2 so hi-z turns display off.
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red.on()
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show()
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pon(0) # Physically power down display
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red.off()
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pyb.standby()
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