# 
from machine import Pin, ADC
from time import sleep

led=Pin(4,Pin.OUT)
pot=ADC(Pin(34))

pot.atten(ADC.ATTN_11DB)
pot.width(ADC.WIDTH_12BIT)

while True:
    rate=pot.read()
    print(rate)
    led.on()
    sleep(rate/1000)
    led.off()
    sleep(rate/1000)