from machine import Pin, PWM, ADC
import utime

pot_pin = 26  # ADC pin
led_pin = 0 

led = PWM(Pin(led_pin))
led.freq(1000) # defines PWM pin operation frequency

pot = ADC(pot_pin)

while True:
    pot_value = pot.read_u16()

    #Normalize values to a range of 0 to 3.3V
    pot_norm_value = pot_value / 65535 * 3.3
    
    print("pot value = ", pot_norm_value)
    #print("pot value = ", pot_value)
    utime.sleep(0.25)
    led.duty_u16(pot_value)