from machine import Pin
from time import sleep

botao= Pin(34, Pin.IN, Pin.PULL_DOWN)

led1 = Pin(15, Pin.OUT)
led2 = Pin(2, Pin.OUT)
led3 = Pin(16, Pin.OUT)

estado = 0

while True:

    if botao.value() == 1:
        estado = not estado
        sleep(0.3)

    if estado == 1:

        led1.on()
        sleep(1)
        led1.off()

        led2.on()
        sleep(1)
        led2.off()

        led3.on()
        sleep(1)
        led3.off()
    
    else:
        led1.off()
        led2.off()
        led3.off()