##############################################################
#             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, ADC
import time
from neopixel import NeoPixel

pin = Pin(2, Pin.OUT)   # set GPIO 2 to output to drive NeoPixels
np = NeoPixel(pin, 16)   # create NeoPixel driver on GPIO 2 for 16 pixels

red_control = ADC(28)
green_control = ADC(27)
blue_control = ADC(26)


# def cap_value(data):
#     return int((data/65535)*255)

# Caping the color value to max 255
cap_value = lambda x: int((x/65535)*255)


while True:
    red = red_control.read_u16()
    green = green_control.read_u16()
    blue = blue_control.read_u16()

    red = cap_value(red)
    green = cap_value(green)
    blue = cap_value(blue)
    # print(red, green, blue)

    np.fill((red, green, blue))
    np.write()
    time.sleep_ms(100)