from machine import Pin
from time import ticks_ms, sleep_ms

led = Pin (2, Pin.OUT)
bot = Pin (27, Pin.IN, Pin.PULL_DOWN)

b = bAnt = bot()

estado = False
tAtual = ticks_ms()

while True:
    b = bot()
    if b != bAnt:
        if b == 1:
            print ('Pressionado')
            estado = not estado
            sleep_ms(200)
        bAnt = b
    
    if estado:
        if ticks_ms() - tAtual >= 500:
            led.value(not led.value())
            tAtual = ticks_ms()