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75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
"""ILI9341 demo (clear)."""
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from time import sleep, ticks_ms
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from ili9341 import Display, color565
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from machine import Pin, SPI # type: ignore
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import gc
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colors = {
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"RED": (255, 0, 0),
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"GREEN": (0, 255, 0),
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"BLUE": (0, 0, 255),
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"YELLOW": (255, 255, 0),
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"AQUA": (0, 255, 255),
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"MAROON": (128, 0, 0),
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"DARK_GREEN": (0, 128, 0),
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"NAVY": (0, 0, 128),
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"TEAL": (0, 128, 128),
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"PURPLE": (128, 0, 128),
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"ORANGE": (255, 128, 0),
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"DEEP_PINK": (255, 0, 128),
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"CYAN": (128, 255, 255),
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}
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def test():
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"""Test code."""
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# Baud rate of 40000000 seems about the max
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spi = SPI(1, baudrate=40000000, sck=Pin(14), mosi=Pin(13))
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display = Display(spi, dc=Pin(4), cs=Pin(16), rst=Pin(17))
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# Calculate valid hlines parameters for display clear method
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valid_hlines = []
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for i in range(1, display.height):
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if display.height % i == 0:
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valid_hlines.append(i)
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# Ensure only 13 entries, truncate or repeat the last one
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valid_hlines = valid_hlines[:13]
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if len(valid_hlines) < 13:
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valid_hlines += [valid_hlines[-1]] * (13 - len(valid_hlines))
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# Ensure only 13 entries, truncate or repeat the last one
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valid_hlines = valid_hlines[:13]
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if len(valid_hlines) < 13:
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valid_hlines += [valid_hlines[-1]] * (13 - len(valid_hlines))
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print('Clearing to black...')
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start = ticks_ms()
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display.clear()
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end = ticks_ms()
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print(f'Display cleared in {end - start} ms.')
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sleep(2)
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print('Clearing to white...')
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start = ticks_ms()
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display.clear(color565(255, 255, 255))
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end = ticks_ms()
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print(f'Display cleared in {end - start} ms.')
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sleep(2)
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for hlines, (color, rgb) in zip(valid_hlines, colors.items()):
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gc.collect()
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print(f'Clearing display to {color}, hlines={hlines}...')
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try:
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start = ticks_ms()
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display.clear(hlines=hlines, color=color565(*rgb))
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end = ticks_ms()
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print(f'Display cleared in {end - start} ms.')
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except Exception as e:
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print(e)
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sleep(1)
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sleep(5)
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display.cleanup()
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test()
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