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

LED=Pin(15)
POT=ADC(26)

pwm=machine.PWM(LED)
pwm.freq(1000)

while True:
    value=POT.read_u16()
    pwm.duty_u16(value)
    print('value :',value)
    time.sleep(0.25)