from machine import Pin 
from time import sleep

led = Pin(0, Pin.OUT )

while True:
    led.on()
    sleep(2)
    led.off()
    sleep(2)

    led.on()
    sleep(2)
    led.off()
    sleep(2)

    led.on()
    sleep(2)
    led.off()
    sleep(2)

    led.on()
    sleep(2)
    led.off()
    sleep(2)

    led.on()
    sleep(2)
    led.off()
    sleep(5)