kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
113 wiersze
3.7 KiB
Python
113 wiersze
3.7 KiB
Python
# mono_test.py Demo program for nano_gui on an SSD1306 OLED display.
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2018-2020 Peter Hinch
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# https://learn.adafruit.com/monochrome-oled-breakouts/wiring-128x32-spi-oled-display
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# https://www.proto-pic.co.uk/monochrome-128x32-oled-graphic-display.html
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# V0.32 5th Nov 2020 Replace uos.urandom for minimal ports
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import utime
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# import uos
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from ssd1306_setup import setup
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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.widgets.meter import Meter
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from gui.widgets.label import Label
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# Fonts
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import gui.fonts.arial10 as arial10
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import gui.fonts.courier20 as fixed
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import gui.fonts.font6 as small
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# Some ports don't support uos.urandom.
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# See https://github.com/peterhinch/micropython-samples/tree/master/random
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def xorshift64star(modulo, seed = 0xf9ac6ba4):
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x = seed
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def func():
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nonlocal x
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x ^= x >> 12
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x ^= ((x << 25) & 0xffffffffffffffff) # modulo 2**64
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x ^= x >> 27
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return (x * 0x2545F4914F6CDD1D) % modulo
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return func
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def fields(use_spi=False, soft=True):
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ssd = setup(use_spi, soft) # Create a display instance
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Writer.set_textpos(ssd, 0, 0) # In case previous tests have altered it
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wri = Writer(ssd, fixed, verbose=False)
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wri.set_clip(False, False, False)
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textfield = Label(wri, 0, 2, wri.stringlen('longer'))
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numfield = Label(wri, 25, 2, wri.stringlen('99.99'), bdcolor=None)
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countfield = Label(wri, 0, 90, wri.stringlen('1'))
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n = 1
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random = xorshift64star(65535)
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for s in ('short', 'longer', '1', ''):
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textfield.value(s)
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numfield.value('{:5.2f}'.format(random() /1000))
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countfield.value('{:1d}'.format(n))
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n += 1
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refresh(ssd)
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utime.sleep(2)
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textfield.value('Done', True)
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refresh(ssd)
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def multi_fields(use_spi=False, soft=True):
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ssd = setup(use_spi, soft) # Create a display instance
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Writer.set_textpos(ssd, 0, 0) # In case previous tests have altered it
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wri = Writer(ssd, small, verbose=False)
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wri.set_clip(False, False, False)
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nfields = []
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dy = small.height() + 6
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y = 2
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col = 15
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width = wri.stringlen('99.99')
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for txt in ('X:', 'Y:', 'Z:'):
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Label(wri, y, 0, txt)
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nfields.append(Label(wri, y, col, width, bdcolor=None)) # Draw border
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y += dy
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random = xorshift64star(2**24 - 1)
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for _ in range(10):
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for field in nfields:
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value = random() / 167772
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field.value('{:5.2f}'.format(value))
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refresh(ssd)
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utime.sleep(1)
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Label(wri, 0, 64, ' DONE ', True)
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refresh(ssd)
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def meter(use_spi=False, soft=True):
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ssd = setup(use_spi, soft)
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wri = Writer(ssd, arial10, verbose=False)
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ssd.fill(0)
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refresh(ssd)
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m0 = Meter(wri, 5, 2, height = 50, divisions = 4, legends=('0.0', '0.5', '1.0'))
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m1 = Meter(wri, 5, 44, height = 50, divisions = 4, legends=('-1', '0', '+1'))
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m2 = Meter(wri, 5, 86, height = 50, divisions = 4, legends=('-1', '0', '+1'))
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steps = 10
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random = xorshift64star(2**24 - 1)
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for n in range(steps + 1):
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m0.value(random() / 16777216)
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m1.value(n/steps)
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m2.value(1 - n/steps)
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refresh(ssd)
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utime.sleep(1)
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tstr = '''Test assumes a 128*64 (w*h) display. Edit WIDTH and HEIGHT in ssd1306_setup.py for others.
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Device pinouts are comments in ssd1306_setup.py.
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All tests take two boolean args:
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use_spi = False. Set True for SPI connected device
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soft=True set False to use hardware I2C/SPI. Hardware I2C option currently fails with official SSD1306 driver.
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Available tests:
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fields() Label test with dynamic data.
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multi_fields() More Labels.
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meter() Demo of Meter object.
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'''
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print(tstr)
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