import machine
from time import sleep

pin34 = machine.Pin(34)                 
adc34 = machine.ADC(pin34)              
adc34.atten(machine.ADC.ATTN_6DB)       # Rango 0.0V – 2.0V
adc34.width(machine.ADC.WIDTH_9BIT)     # Resolución de 9 bits (0-511)

while True:
    V_16bits = (adc34.read_u16() / 65535) * 2.0   # Escalado a voltios
    V_9bits  = (adc34.read() / 511) * 2.0         # Escalado a voltios
    
    print("Valor con 16 bits:", round(V_16bits, 3), "V  --  Valor con 9 bits:", round(V_9bits, 3), "V")
    sleep(5)