108 lines
2.4 KiB
Python
108 lines
2.4 KiB
Python
# SPDX-FileCopyrightText: 2021 Charlyn Gonda for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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#
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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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pixel_pin = board.D4
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num_pixels = 13
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pixels = neopixel.NeoPixel(pixel_pin, num_pixels, brightness=0.3,
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auto_write=False)
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# Lights up the message letter by letter
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def spell(color, wait):
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for i in range(num_pixels-1, -1, -1):
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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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# Lights up a word, given a startIndex and stopIndex
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def show_word(startIndex, endIndex, color, wait):
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pixels.fill(OFF)
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pixels.show()
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time.sleep(0.1)
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for i in range(startIndex, endIndex-1, -1):
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pixels[i] = color
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pixels.show()
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time.sleep(wait)
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# Lights up every even-numbered index
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def alternate(color, wait):
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for i in range(num_pixels):
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if i % 2 == 0:
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pixels[i] = color
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else:
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pixels[i] = OFF
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pixels.show()
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time.sleep(wait)
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# Lights up every odd-numbered index
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def alternate_reverse(color, wait):
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for i in range(num_pixels):
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if i % 2 == 1:
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pixels[i] = color
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else:
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pixels[i] = OFF
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pixels.show()
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time.sleep(wait)
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# Full rainbow!
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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(num_pixels):
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rc_index = (i * 256 // num_pixels) + j
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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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RED = (255, 0, 0)
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YELLOW = (255, 150, 0)
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ORANGE = (255, 40, 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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MAGENTA = (255, 0, 20)
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JADE = (0, 255, 40)
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OFF = (0, 0, 0)
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ALT_WAIT = 0.5
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CHASE_WAIT = 0.1
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WORD_WAIT = 1
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while True:
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# indices for "birthday" is from 12 - 5
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show_word(12, 5, MAGENTA, WORD_WAIT)
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# indices for "boss" is from 4 - 0
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show_word(4, 0, JADE, WORD_WAIT)
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# again!
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show_word(12, 5, ORANGE, WORD_WAIT)
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show_word(4, 0, YELLOW, WORD_WAIT)
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spell(GREEN, CHASE_WAIT)
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spell(CYAN, CHASE_WAIT)
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spell(PURPLE, CHASE_WAIT)
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alternate(JADE, ALT_WAIT)
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alternate_reverse(ORANGE, ALT_WAIT)
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alternate(MAGENTA, ALT_WAIT)
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alternate_reverse(BLUE, ALT_WAIT)
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alternate(PURPLE, ALT_WAIT)
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alternate_reverse(GREEN, ALT_WAIT)
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alternate(CYAN, ALT_WAIT)
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alternate_reverse(MAGENTA, ALT_WAIT)
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rainbow_cycle(0)
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rainbow_cycle(0) # higher number, slower rainbow
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