85 lines
2 KiB
Python
85 lines
2 KiB
Python
# SPDX-FileCopyrightText: 2017 John Edgar Park for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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# Circuit Playground NeoPixel
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import time
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import board
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from rainbowio import colorwheel
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import neopixel
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pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=0.2, auto_write=False)
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# choose which demos to play
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# 1 means play, 0 means don't!
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color_chase_demo = 1
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flash_demo = 1
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rainbow_demo = 1
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rainbow_cycle_demo = 1
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def color_chase(color, wait):
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for i in range(10):
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pixels[i] = color
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time.sleep(wait)
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pixels.show()
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time.sleep(0.5)
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def rainbow_cycle(wait):
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for j in range(255):
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for i in range(10):
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rc_index = (i * 256 // 10) + j * 5
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pixels[i] = colorwheel(rc_index & 255)
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pixels.show()
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time.sleep(wait)
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def rainbow(wait):
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for j in range(255):
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for i in range(len(pixels)):
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idx = int(i + j)
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pixels[i] = colorwheel(idx & 255)
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pixels.show()
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time.sleep(wait)
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RED = (255, 0, 0)
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YELLOW = (255, 150, 0)
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GREEN = (0, 255, 0)
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CYAN = (0, 255, 255)
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BLUE = (0, 0, 255)
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PURPLE = (180, 0, 255)
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WHITE = (255, 255, 255)
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OFF = (0, 0, 0)
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while True:
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if color_chase_demo:
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color_chase(RED, 0.1) # Increase the number to slow down the color chase
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color_chase(YELLOW, 0.1)
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color_chase(GREEN, 0.1)
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color_chase(CYAN, 0.1)
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color_chase(BLUE, 0.1)
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color_chase(PURPLE, 0.1)
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color_chase(OFF, 0.1)
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if flash_demo:
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pixels.fill(RED)
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pixels.show()
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# Increase or decrease to change the speed of the solid color change.
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time.sleep(1)
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pixels.fill(GREEN)
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pixels.show()
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time.sleep(1)
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pixels.fill(BLUE)
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pixels.show()
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time.sleep(1)
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pixels.fill(WHITE)
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pixels.show()
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time.sleep(1)
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if rainbow_cycle_demo:
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rainbow_cycle(0.05) # Increase the number to slow down the rainbow.
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if rainbow_demo:
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rainbow(0.05) # Increase the number to slow down the rainbow.
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