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Update example to use rainbowio #109

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Sep 23, 2021
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Update example to use rainbowio #109

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17 changes: 2 additions & 15 deletions examples/circuitplayground_pixels_simpletest.py
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Expand Up @@ -3,28 +3,15 @@

"""This example lights up the NeoPixels with a rainbow swirl."""
import time
from rainbowio import colorwheel
from adafruit_circuitplayground import cp


def wheel(pos):
# Input a value 0 to 255 to get a color value.
# The colours are a transition r - g - b - back to r.
if (pos < 0) or (pos > 255):
return (0, 0, 0)
if pos < 85:
return (int(pos * 3), int(255 - (pos * 3)), 0)
if pos < 170:
pos -= 85
return (int(255 - pos * 3), 0, int(pos * 3))
pos -= 170
return (0, int(pos * 3), int(255 - pos * 3))


def rainbow_cycle(wait):
for j in range(255):
for i in range(cp.pixels.n):
idx = int((i * 256 / len(cp.pixels)) + j)
cp.pixels[i] = wheel(idx & 255)
cp.pixels[i] = colorwheel(idx & 255)
cp.pixels.show()
time.sleep(wait)

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