from machine import Pin
from neopixel import NeoPixel
import time

strip_lenght = 6

pin = Pin(14, Pin.OUT)       # set a pin to output to drive NeoPixels
leds = NeoPixel(pin, strip_lenght)   # create NeoPixel driver on pin for 8 pixels

# set the starting pixels 
leds[0] = [255,0,0]    
leds[3] = [0,255,0]
leds[6] = [0,0,255]

#main loop
while(1):
    for index in range(strip_lenght):
        if index == 0:
            remeberLast = leds[strip_lenght - 1]
            leds[strip_lenght - 1] = leds[0]
        elif index == strip_lenght - 1:
            leds[index - 1] = remeberLast
        else:
            leds[index - 1] = leds[index]
            
    leds.write()     # write data to all pixels        
    time.sleep(0.5)  # sleep 0.5s before moving again