neopixel_effects.py

class NeoPixel_Effects():
    def __init__(self, pixel_strand):
        self.pixels = pixel_strand
    def rainbow(self, wait_time):
        for j in range(256):
            for i in range(self.pixels.numPixels()):
                self.pixels.setPixelColor(i,self.Wheel((i+j)&255))
            self.pixels.show()
            self.pixels.delay(wait_time)
    def rainbowCycle(self, wait_time, cycles):
        for j in range(256*cycles):
            for i in range(self.pixels.numPixels()):
                self.pixels.setPixelColor(i,self.Wheel((int(i * 256 / self.pixels.numPixels()) + j) & 255))
            self.pixels.show()
            self.pixels.delay(wait_time)
    def colorWipe(self, color, wait_time):
        for pixel in range(self.pixels.numPixels()):
            self.pixels.setPixelColor(pixel, color)
            self.pixels.show()
            self.pixels.delay(wait_time)
    def Wheel(self, WheelPos):
        WheelPos = 255 - WheelPos
        if WheelPos < 85: 
            return self.pixels.Color(255 - WheelPos * 3, 0, WheelPos * 3)
        if WheelPos < 170:
            WheelPos -=85 
            return self.pixels.Color(0, WheelPos * 3, 255 - WheelPos * 3)
        WheelPos -= 170 
        return self.pixels.Color(WheelPos * 3, 255 - WheelPos * 3, 0)