import board
import neopixel
from time import sleep

LED_PIN = board.GP16

num_pixels = 16

pixels = neopixel.NeoPixel(LED_PIN, num_pixels,)

while True:
    for i in range(len(pixels)):
        pixels[i] = [255, 0, 0]
        pixels.show()
        sleep(0.2)
    
    pixels.fill((0, 255, 0))
    pixels.show()
    sleep(1)
    pixels.fill((0, 0, 255))
    pixels.show()
    break