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Nov 18, 2022
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Add rainbowio simpletest #143

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27 changes: 27 additions & 0 deletions examples/neopixel_rainbowio_simpletest.py
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# SPDX-FileCopyrightText: 2022 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

import time
import board
from rainbowio import colorwheel
import neopixel

NUMPIXELS = 12 # Update this to match the number of LEDs.
SPEED = 0.05 # Increase to slow down the rainbow. Decrease to speed it up.
BRIGHTNESS = 0.2 # A number between 0.0 and 1.0, where 0.0 is off, and 1.0 is max.
PIN = board.A3 # This is the default pin on the 5x5 NeoPixel Grid BFF.

pixels = neopixel.NeoPixel(PIN, NUMPIXELS, brightness=BRIGHTNESS, auto_write=False)


def rainbow_cycle(wait):
for color in range(255):
for pixel in range(len(pixels)): # pylint: disable=consider-using-enumerate
pixel_index = (pixel * 256 // len(pixels)) + color * 5
pixels[pixel] = colorwheel(pixel_index & 255)
pixels.show()
time.sleep(wait)


while True:
rainbow_cycle(SPEED)