# Initial code
from microbit import *
import neopixel

np = neopixel.NeoPixel(pin0,16)

red = (64,0,0)
green = (0,64,0)    
blue = (0,0,64)

while True:
    
    for pixel_id in range(0, len(np)):
        np[pixel_id] = (red)
        np.show()
        sleep(10)

    for pixel_id in range(0, len(np)):
        np[pixel_id] = (green)
        np.show()
        sleep(10)
        
    for pixel_id in range(0, len(np)):
        np[pixel_id] = (blue)
        np.show()
        sleep(10)



# Refactored code
from microbit import *
import neopixel

np = neopixel.NeoPixel(pin0,16)

red = (64,0,0)
green = (0,64,0)    
blue = (0,0,64)
    
def illuminate(colour):
    for pixel_id in range(0, len(np)):
        np[pixel_id] = (colour)
        np.show()
        sleep(20)
    
while True:
    illuminate(red)
    illuminate(green)
    illuminate(blue)