from machine import Pin
from time import sleep
from neopixel import NeoPixel

np_power_pin = Pin(11, machine.Pin.OUT) # XIAO neopixel power is on Pin11
np_pin = Pin(12)                        # Pin to control neopixel (signal)

# Power the neopixel
np_power_pin.high()

pixels = NeoPixel(np_pin, 1) #only one pixel led

colors = [
  (0xff, 0x00, 0x00),  #RED
  (0x00, 0xff, 0x00),  #GREEN
  (0x00, 0x00, 0xff),  #BLUE
  (0xff, 0xff, 0x00),  #YELLOW
  (0x00, 0xff, 0xff),  #TURQUOISE
  (0xff, 0x00, 0xff)   #PURPLE
]

color_n = len(colors)
color_index = 0

while True :
  for color in colors:
    pixels.fill(color)
    pixels.write()
    sleep(0.5)