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

botao = Pin (0, Pin.IN)
conversor = ADC(Pin(4))
np = NeoPixel(Pin(5),1)

while True:
    
    valor = conversor.read_u16()
    tensao = valor/65535*3.3
    print (f'{valor}, {tensao}V')
    
    np[0] = (255,0,0)
    np.write()
    sleep_ms(500)
    
    np[0] = (0,255,0)
    np.write()
    sleep_ms(500)
    
    np[0] = (0,0,255)
    np.write()
    sleep_ms(500)
    
    np[0] = (255,128,0)
    np.write()
    sleep_ms(500)