##############################################################
#             Neopixel WS2812 LED Interface                  #
##############################################################
#
# Neopixel WS2812 LED interface with Raspberry Pi Pico / W / 2 / w2 (Hardware & Simulation)
#
# Check out the link for Code explanation and Hardware details
# Link: 
#   http://tech.arunkumarn.in/blogs/raspberry-pi-pico/
#
# 

from machine import Pin
import random
import time
from neopixel import NeoPixel

pin = Pin(2, Pin.OUT)   # set GPIO 2 to output to drive NeoPixels
np = NeoPixel(pin, 18)   # create NeoPixel driver on GPIO 2 for 18 pixels




while True:
    red = random.randint(0, 256)
    green = random.randint(0, 256)
    blue = random.randint(0, 256)
    np.fill((red, green, blue))
    np.write()
    time.sleep(1)