test.py

# NeoPixel library strandtest example
# Author: Tony DiCola (tony@tonydicola.com)
#
# Direct port of the Arduino NeoPixel library strandtest example.  Showcases
# various animations on a strip of NeoPixels.
import time
from neopixel import *
from config import *
LED_STRIP = ws.WS2811_STRIP_GRB   # Strip type and colour ordering

def wheel(pos):
	"""Generate rainbow colors across 0-255 positions."""
	if pos < 85:
		return Color(pos * 3, 255 - pos * 3, 0)
	elif pos < 170:
		pos -= 85
		return Color(255 - pos * 3, 0, pos * 3)
	else:
		pos -= 170
		return Color(0, pos * 3, 255 - pos * 3)

def rainbowCycle(strip, wait_ms=2, iterations=5):
	"""Draw rainbow that uniformly distributes itself across all pixels."""
	for j in range(256*iterations):
		for i in range(strip.numPixels()):
			strip.setPixelColor(i, wheel((int(i * 256 / strip.numPixels()) + j) & 255))
		strip.show()
		time.sleep(wait_ms/1000.0)

def colorWipe(strip, color, wait_ms=50):
    """Wipe color across display a pixel at a time."""
    for i in range(strip.numPixels()):
        strip.setPixelColor(i, color)
        strip.show()
        time.sleep(wait_ms/1000.0)


# Main program logic follows:
if __name__ == '__main__':
	# Create NeoPixel object with appropriate configuration.
	strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
	# Intialize the library (must be called once before other functions).
	#time.sleep(10)
	strip.begin()
	print ('Rainbow animations.')
	rainbowCycle(strip)
	colorWipe(strip, Color(0,0,0), 10)

quit()