from machine import Pin
from utime import sleep


led = Pin(5,Pin.OUT)

while True:
  led.on()
  sleep(1)  #delay
  led.off()
  sleep(1)   


  # import machine
  # import utime
  # led = machine.Pin(5,machine.Pin.OUT)

  # while True:
  #   led.on()
  #   utime.sleep(1)
  #   led.off()
  #   utime.sleep(1)