2020-05-13 19:09:52 -04:00
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"""
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Writes "Hello!" in random colors at random locations.
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"""
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2020-05-09 13:03:13 -04:00
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import random
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from machine import Pin, SPI
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import st7789
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2020-05-13 19:09:52 -04:00
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# Choose a font
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2020-05-09 13:03:13 -04:00
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#from fonts import vga1_8x8 as font
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2020-05-13 19:09:52 -04:00
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#from fonts import vga2_8x8 as font
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#from fonts import vga1_8x16 as font
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#from fonts import vga2_8x16 as font
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#from fonts import vga1_16x16 as font
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#from fonts import vga1_bold_16x16 as font
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#from fonts import vga2_16x16 as font
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from fonts import vga2_bold_16x16 as font
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2020-05-09 13:03:13 -04:00
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def main():
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tft = st7789.ST7789(
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2020-05-13 19:09:52 -04:00
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SPI(2, baudrate=30000000, polarity=1, phase=1, sck=Pin(18), mosi=Pin(19)),
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135,
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240,
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reset=Pin(23, Pin.OUT),
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cs=Pin(5, Pin.OUT),
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dc=Pin(16, Pin.OUT),
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backlight=Pin(4, Pin.OUT),
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rotation=3
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2020-05-09 13:03:13 -04:00
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)
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tft.init()
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while True:
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for rotation in range(4):
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tft.rotation(rotation)
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tft.fill(0)
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col_max = tft.width() - font.WIDTH*6
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row_max = tft.height() - font.HEIGHT
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for _ in range(250):
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tft.text(
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font,
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"Hello!",
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random.randint(0, col_max),
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random.randint(0, row_max),
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st7789.color565(
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random.getrandbits(8),
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random.getrandbits(8),
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random.getrandbits(8)),
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st7789.color565(
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random.getrandbits(8),
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random.getrandbits(8),
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random.getrandbits(8))
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)
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main()
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