LEDs-main.py

import time
import colorsys
import RPi.GPIO as GPIO

import Adafruit_WS2801
import Adafruit_GPIO.SPI as SPI

PIXEL_COUNT = 160
BRIGHTNESS = 0.05

SPI_PORT = 0
SPI_DEVICE = 0
pixels = Adafruit_WS2801.WS2801Pixels(PIXEL_COUNT, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE), gpio=GPIO)

if __name__ == "__main__":
        pixels.clear()

#       for i in range(150):
#               pixels.set_pixel(i, Adafruit_WS2801.RGB_to_color(255, 0, 0))
#       pixels.show()

        offset = 0
        while True:
                offset = offset + 1
                for i in range(PIXEL_COUNT):
                        r, g, b = colorsys.hsv_to_rgb(((i + offset) % 360) / 360.0, 1, 1)
                        pixels.set_pixel(i, Adafruit_WS2801.RGB_to_color(int(r * 255 * BRIGHTNESS), int(g * 255 * BRIGHTNESS), int(b * 255 * BRIGHTNESS)))
                pixels.show()
                time.sleep(0.01)
        pixels.show()