import time
from neopixel import Neopixel

PIN  =       13
NUMPIXELS =  64          # NeoPixel ring size
pixDELAY  =  100         # Delay for pixel persistence

pixels = Neopixel(NUMPIXELS, 0, PIN, "GRB")

# Start Function
if __name__ == '__main__':

  for n in range(0,8):
    a=1
    b=1
    x= n*a + b
    pixels.set_pixel(x-1, (255, 0, 0))

    a=8
    b=1
    x= n*a + b
    pixels.set_pixel(x-1, (255, 0, 0))

    a=9
    b=1
    x= n*a + b
    pixels.set_pixel(x-1, (255, 0, 0))

    pixels.show()
    time.sleep_ms(pixDELAY)