7fa4a07146
Adding the code for the NeoPixel Menorah Learn Guide. Adding a button to turn on each neopixel candle one by one
72 lines
2.1 KiB
Python
Executable file
72 lines
2.1 KiB
Python
Executable file
# SPDX-FileCopyrightText: 2021 Liz Clark for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import time
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import board
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import neopixel
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from digitalio import DigitalInOut, Direction, Pull
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from adafruit_led_animation.animation.rainbow import Rainbow
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from adafruit_led_animation.sequence import AnimationSequence
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from adafruit_led_animation import helper
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from adafruit_led_animation.color import AMBER
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# button setup
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button = DigitalInOut(board.D1)
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button.direction = Direction.INPUT
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button.pull = Pull.UP
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# neopixel setup
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pixel_pin = board.D0
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pixel_num = 9
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pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=0.3, auto_write=False)
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# variable for number of pixels in the pixelmap helper
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num = 1
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# pixel map helper
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# allows you to light each candle up one by one
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# begins with one being lit (num)
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candles = helper.PixelMap.horizontal_lines(
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pixels, num, 1, helper.horizontal_strip_gridmap(pixel_num, alternating=False)
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)
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# rainbow animation
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rainbow = Rainbow(candles, speed=0.1, period=5)
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animations = AnimationSequence(rainbow)
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# turn on center candle
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pixels[4] = AMBER
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pixels.show()
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while True:
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# if only one candle is lit, don't rewrite center neopixel
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if num == 1:
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pass
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# otherwise write data to center neopixel
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else:
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pixels[4] = AMBER
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pixels.show()
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# animation the rainbow animation
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animations.animate()
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# if you press the button...
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if not button.value:
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# if all of the candles are not lit up yet...
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if num < 9:
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# increase value of num by one
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num += 1
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# skip the center candle so that it stays amber
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if num == 4:
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num = 5
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# recreate the pixel helper to increase the size of the horizontal grid
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# this is how the next neopixel is lit up in the sequence
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candles = helper.PixelMap.horizontal_lines(
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pixels, num, 1, helper.horizontal_strip_gridmap(pixel_num, alternating=False)
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)
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rainbow = Rainbow(candles, speed=0.1, period=5)
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animations = AnimationSequence(rainbow)
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# quick delay so that everything flows well
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time.sleep(0.5)
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