print("Let's make external LED Blink")
print("21/11/2023")
print("created by ZUNIE")

#import libraries
from machine import Pin 
from utime import sleep

#Pin declaration
built_in_LED = Pin(2, Pin.OUT) #(gpio pin no2 to make led blink)
yellow_LED = Pin(12, Pin.OUT)
built_in_LED = Pin(2, Pin.OUT) 
red_LED = Pin(13, Pin.OUT)
built_in_LED = Pin(2, Pin.OUT) 
green_LED = Pin(14, Pin.OUT)

#Parameter Settings

#Main program
while True:
  built_in_LED.on()
  red_LED.off()
  sleep(0.25)
  built_in_LED.off()
  red_LED.on()
  sleep(0.25)

  built_in_LED.on()
  green_LED.off()
  sleep(0.35)
  built_in_LED()
  green_LED.on()
  sleep(0.35)

  built_in_LED.on()
  red_LED.off()
  sleep(0.45)
  built_in_LED.off()
  red_LED.on()
  sleep(0.45)

  built_in_LED.on()
  yellow_LED.off()
  sleep(0.15)
  built_in_LED.off()
  yellow_LED.on()
  sleep(0.15)