from machine import Pin,ADC,PWM
from time import sleep

led = Pin(2, Pin.OUT)
# ci=onfigure ADC for ESP32
pot =ADC(Pin(34))
pot.width(ADC.WIDTH_10BIT)
pot.atten(ADC.ATTN_11DB)

led_pwm=PWM(Pin(4),5000)

while True:
  pot_value=pot.read()
  led_pwm.duty(pot_value)
  sleep(0.1)