66 lines
1.5 KiB
Python
66 lines
1.5 KiB
Python
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import neopixel
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from machine import Pin
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import time
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from random import randint, random, seed
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seed()
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ws_pin = 0
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led_zahl = 64
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helligkeit = 0.05
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matrix = neopixel.NeoPixel(Pin(ws_pin), led_zahl)
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taster_hoch = Pin(1, Pin.IN, Pin.PULL_UP)
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taster_runter = Pin(2, Pin.IN, Pin.PULL_UP)
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taster_rechts = Pin(3, Pin.IN, Pin.PULL_UP)
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taster_links = Pin(4, Pin.IN, Pin.PULL_UP)
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scalar = float # a scale value (0.0 to 1.0)
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def hsv2rgb(h:scalar, s:scalar, v:scalar) -> tuple:
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if s:
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if h == 1.0: h = 0.0
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i = int(h*6.0); f = h*6.0 - i
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w = int(255*( v * (1.0 - s) ))
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q = int(255*( v * (1.0 - s * f) ))
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t = int(255*( v * (1.0 - s * (1.0 - f)) ))
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v = int(255*v)
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if i==0: return (v, t, w)
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if i==1: return (q, v, w)
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if i==2: return (w, v, t)
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if i==3: return (w, q, v)
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if i==4: return (t, w, v)
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if i==5: return (v, w, q)
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else: v = int(255*v); return (v, v, v)
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def zufall_farbe():
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return hsv2rgb(random(), 1.0, 1.0)
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def setze_helligkeit(farbe):
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r, g, b = farbe
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r = int(r * helligkeit)
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g = int(g * helligkeit)
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b = int(b * helligkeit)
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return (r, g, b)
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def setze_pixel(x, y, farbe):
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farbe = setze_helligkeit(farbe)
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i = y * 8 + x
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matrix[i] = farbe
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def neue_position():
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x = randint(0, 7)
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y = randint(0, 7)
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return (x, y)
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while True:
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matrix.fill((0, 0, 0))
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(x, y) = neue_position()
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setze_pixel(x, y, zufall_farbe())
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matrix.write()
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time.sleep(0.5)
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