print("Let's make external LED blink")
print("Date : 21/11/2023")
print("Created by Louis")

#import librairies
from machine import Pin
from time import sleep

#Pin declaration
built_in_LED = Pin(2, Pin.OUT)  #(gpio pin no, IN or OUT)
externl_LED = Pin(12, Pin.OUT)

#parameter setting


#Main programme
while True :
  built_in_LED.on()
  externl_LED.off()
  sleep(.2)
  built_in_LED.off()
  externl_LED.on()
  sleep(.2)