text: """------------------------------------------------------------*-
    LED indicator for Raspberry Pi
    Tested on: Raspberry Pi 3 B+
    (c) Minh-An Dao 2019
    version 1.00 - 17/10/2019
   --------------------------------------------------------------
   *
   *
   --------------------------------------------------------------"""
  import RPi.GPIO as GPIO  # default as BCM mode!
  import time
  
  LED_PIN = 23
  
  SHORT_INTERVAL = 1.5
  LONG_INTERVAL = 1
  
  GPIO.setmode(GPIO.BCM)
  GPIO.setwarnings(False)
  GPIO.setup(LED_PIN, GPIO.OUT)
  
  
  
  if __name__ == "__main__":
      try:
          GPIO.output(LED_PIN, GPIO.HIGH)
          time.sleep(SHORT_INTERVAL)
          GPIO.output(LED_PIN, GPIO.LOW)
          # time.sleep(SHORT_INTERVAL)
      except KeyboardInterrupt:
          pass
  
  