kopia lustrzana https://github.com/pimoroni/pimoroni-pico
48 wiersze
1.4 KiB
Python
48 wiersze
1.4 KiB
Python
# This example borrows a CircuitPython hsv_to_rgb function to cycle through some rainbows on Pico Explorer's screen and RGB LED . If you're into rainbows, HSV (Hue, Saturation, Value) is very useful!
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import utime
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import picoexplorer as display
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# Set up and initialise Pico Explorer
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buf = bytearray(display.get_width() * display.get_height() * 2)
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display.init(buf)
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# From CPython Lib/colorsys.py
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def hsv_to_rgb(h, s, v):
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if s == 0.0:
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return v, v, v
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i = int(h * 6.0)
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f = (h * 6.0) - i
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p = v * (1.0 - s)
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q = v * (1.0 - s * f)
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t = v * (1.0 - s * (1.0 - f))
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i = i % 6
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if i == 0:
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return v, t, p
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if i == 1:
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return q, v, p
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if i == 2:
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return p, v, t
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if i == 3:
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return p, q, v
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if i == 4:
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return t, p, v
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if i == 5:
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return v, p, q
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h = 0
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while True:
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h += 1
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r, g, b = [int(255 * c) for c in hsv_to_rgb(h / 360.0, 1.0, 1.0)] # rainbow magic
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display.set_pen(r, g, b) # Set pen to a converted HSV value
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display.clear() # Fill the screen with the colour
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display.set_pen(0, 0, 0) # Set pen to black
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display.text("pico disco!", 25, 20, 240, 6) # Add some text
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display.text("\\o/ \\o/ \\o/ \\o/ \\o/ \\o/ \\o/ \\o/ \\o/", 25, 120, 240, 4) # and some more text
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display.text("oontz oontz oontz", 25, 220, 240, 2) # and a bit more tiny text
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display.update() # Update the display
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utime.sleep(1.0 / 60)
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