import machine
from time import sleep

potPin = 28

myPot = machine.ADC(potPin)

while True:
    potValue = myPot.read_u16()
    volatageValue = (3.3*potValue)/65535
    print(volatageValue)
    # homework solution
    # measureValue = (100*potValue)/65535
    # print(measureValue)
    sleep(1)