from machine import Pin
import time

led = Pin(0, Pin.OUT)
btn_faster = Pin(1, Pin.IN, Pin.PULL_UP)
btn_slower = Pin(2, Pin.IN, Pin.PULL_UP)

delay  = 0.5

while True:
    # encender led
    led.value(1)
    time.sleep(delay)

    #apagar led
    led.value(0)
    time.sleep(delay)

    if btn_faster.value() == 0:
        delay = 0.1
        if delay < 0.1:
            delay = 0.1
        
        print("mas rapido:" , delay)
        time.sleep(0.2)

        if btn_slower.value() == 0:
            delay +=  0.1
            if delay > 2:
                delay = 2
            print("mas lento:" , delay)
            time.sleep(0.2)