kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
75 wiersze
2.3 KiB
Python
75 wiersze
2.3 KiB
Python
# asnano.py Test/demo program for use of nanogui with uasyncio
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# Uses Adafruit ssd1351-based OLED displays (change height to suit)
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# Adafruit 1.5" 128*128 OLED display: https://www.adafruit.com/product/1431
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# Adafruit 1.27" 128*96 display https://www.adafruit.com/product/1673
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# Copyright (c) 2020 Peter Hinch
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# Released under the MIT License (MIT) - see LICENSE file
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# Initialise hardware and framebuf before importing modules.
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from color_setup import ssd # Create a display instance
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import uasyncio as asyncio
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import pyb
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import uos
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from gui.core.writer import CWriter
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from gui.core.nanogui import refresh
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from gui.widgets.led import LED
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from gui.widgets.meter import Meter
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refresh(ssd)
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# Fonts
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import gui.fonts.arial10 as arial10
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import gui.fonts.freesans20 as freesans20
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from gui.core.colors import *
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CWriter.set_textpos(ssd, 0, 0) # In case previous tests have altered it
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wri = CWriter(ssd, arial10, GREEN, BLACK, verbose=False)
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wri.set_clip(True, True, False)
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color = lambda v : RED if v > 0.7 else YELLOW if v > 0.5 else GREEN
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txt = lambda v : 'ovr' if v > 0.7 else 'high' if v > 0.5 else 'ok'
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async def meter(n, x, text, t):
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print('Meter {} test.'.format(n))
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m = Meter(wri, 5, x, divisions = 4, ptcolor=YELLOW,
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label=text, style=Meter.BAR, legends=('0.0', '0.5', '1.0'))
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l = LED(wri, ssd.height - 16 - wri.height, x, bdcolor=YELLOW, label ='over')
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while True:
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v = int.from_bytes(uos.urandom(3),'little')/16777216
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m.value(v, color(v))
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l.color(color(v))
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l.text(txt(v), fgcolor=color(v))
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refresh(ssd)
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await asyncio.sleep_ms(t)
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async def flash(n, t):
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led = pyb.LED(n)
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while True:
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led.toggle()
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await asyncio.sleep_ms(t)
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async def killer(tasks):
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sw = pyb.Switch()
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while not sw():
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await asyncio.sleep_ms(100)
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for task in tasks:
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task.cancel()
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async def main():
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tasks = []
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tasks.append(asyncio.create_task(meter(1, 2, 'left', 700)))
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tasks.append(asyncio.create_task(meter(2, 50, 'right', 1000)))
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tasks.append(asyncio.create_task(meter(3, 98, 'bass', 1500)))
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tasks.append(asyncio.create_task(flash(1, 200)))
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tasks.append(asyncio.create_task(flash(2, 233)))
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await killer(tasks)
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print('Press Pyboard usr button to stop test.')
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try:
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asyncio.run(main())
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finally: # Reset uasyncio case of KeyboardInterrupt
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asyncio.new_event_loop()
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