kopia lustrzana https://github.com/pimoroni/pimoroni-pico
43 wiersze
1.4 KiB
Python
43 wiersze
1.4 KiB
Python
import time
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import plasma
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from plasma import plasma_stick
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from random import random, choice
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"""
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A Christmas tree, with fairy lights!
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This will probably work better if your LEDs are in a vaguely tree shaped bottle :)
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"""
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# Set how many LEDs you have
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NUM_LEDS = 50
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# we're using HSV colours in this example - find more at https://colorpicker.me/
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# to convert a hue that's in degrees, divide it by 360
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TREE_COLOUR = [0.34, 1.0, 0.6]
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LIGHT_RATIO = 8 # every nth pixel is a light, the rest are tree.
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LIGHT_COLOURS = ((0.0, 1.0, 1.0), # red
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(0.1, 1.0, 1.0), # orange
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(0.6, 1.0, 1.0), # blue
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(0.85, 0.4, 1.0)) # pink
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LIGHT_CHANGE_CHANCE = 0.5 # change to 0.0 if you want static lights
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# set up the WS2812 / NeoPixel™ LEDs
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led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma_stick.DAT, color_order=plasma.COLOR_ORDER_RGB)
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# start updating the LED strip
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led_strip.start()
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# initial setup
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for i in range(NUM_LEDS):
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if i % LIGHT_RATIO == 0: # add an appropriate number of lights
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led_strip.set_hsv(i, *choice(LIGHT_COLOURS)) # choice randomly chooses from a list
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else: # GREEN
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led_strip.set_hsv(i, *TREE_COLOUR)
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# animate
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while True:
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for i in range(NUM_LEDS):
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if (i % LIGHT_RATIO == 0) and (random() < LIGHT_CHANGE_CHANCE):
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led_strip.set_hsv(i, *choice(LIGHT_COLOURS))
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time.sleep(0.5)
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