from machine import Pin,ADC
from time import sleep_ms
Rled=Pin(14,Pin.OUT)

Bled=Pin(12,Pin.OUT)

pot=ADC(Pin(13))
pot.atten(ADC.ATTN_11DB)

while True:

    pot_value=pot.read()
    led.value(1)
    sleep_ms(pot_value)
    led.value(0)
    sleep_ms(pot_value)