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)