34 lines
909 B
Python
34 lines
909 B
Python
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import random
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import time
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import board
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import adafruit_dotstar as dotstar
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# On-board DotStar for boards including Gemma, Trinket, and ItsyBitsy
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dots = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
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# Using a DotStar Digital LED Strip with 30 LEDs connected to hardware SPI
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# dots = dotstar.DotStar(board.SCK, board.MOSI, 30, brightness=0.2)
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# Using a DotStar Digital LED Strip with 30 LEDs connected to digital pins
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# dots = dotstar.DotStar(board.D6, board.D5, 30, brightness=0.2)
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# HELPERS
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# a random color 0 -> 192
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def random_color():
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return random.randrange(0, 7) * 32
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# MAIN LOOP
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n_dots = len(dots)
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while True:
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# Fill each dot with a random color
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for dot in range(n_dots):
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dots[dot] = (random_color(), random_color(), random_color())
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time.sleep(0.25)
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