from machine import Pin
from time import sleep

#pin definition
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(2)
   led.off()
   sleep(10)