#Write a micropython script to control the brightness of an led 
#with the connected to GPIO 4 with respect to the position of 
#the potentiometer knob connected to PIN 34 of ESP32
from machine import Pin, ADC, PWM
from time import sleep
pot = ADC(Pin(34))
led = PWM(Pin(4))
pot.width(ADC.WIDTH_12BIT)
pot.atten(ADC.ATTN_11DB)
while True: 
    pot_value = pot.read()  
    duty_cycle = pot_value // 16  
    led.duty(duty_cycle)
    print(duty_cycle)
    sleep(0.1)