# Exercise 12(b)

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

# Initialize 16-pixel ring on GPIO pin 12
ring = NeoPixel(Pin(12), 16)

pot1 = ADC(Pin(36)) # pin 36 will be used as an ADC input line
pot2 = ADC(Pin(39)) # pin 39 will be used as an ADC input line
pot3 = ADC(Pin(34)) # pin 34 will be used as an ADC input line

switch = Pin(19,Pin.IN,Pin.PULL_UP)  # configure the target GPIO line as an input



while True:
    pot1_value = int(pot1.read()/16)
    pot2_value = int(pot2.read()/16)
    pot3_value = int(pot3.read()/16)

    
    for i in range(16):
        ring[i] = (pot1_value, pot2_value, pot3_value) # Set pixel 0 to red
        ring.write()
        sleep(0.25)