old_contents: import time
  import lgpio
  
  #17: location 11 Header pin
  #27: location 13 Header pin
  #22: location 15 Header pin
  
  LED0 = 17
  LED1 = 27
  LED2 = 22
  
  if __name__=="__main__":
  
      print ("...Start...")
  
      # open the gpio chip and set the LED pin as output
      h = lgpio.gpiochip_open(0)
      print (lgpio.gpio_claim_output(h, LED0))
      lgpio.gpio_claim_output(h, LED1)
      lgpio.gpio_claim_output(h, LED2)
  
      try:
  
          while True:
              # Turn the GPIO pin low
              lgpio.gpio_write(h, LED0, 0)
              lgpio.gpio_write(h, LED1, 0)
              lgpio.gpio_write(h, LED2, 0)
              print ('GIO', 'is On')
              time.sleep(90)
  
              # Turn the GPIO pin high
              lgpio.gpio_write(h, LED0, 1)
              lgpio.gpio_write(h, LED1, 1)
              lgpio.gpio_write(h, LED2, 1)
              print ('GIO', 'is Off') #LED 보드 구현에 따라, H->On, L->On 이 다를수 있음
              time.sleep(1)
  
  
      except KeyboardInterrupt:
          lgpio.gpio_write(h, LED0, 0)
          lgpio.gpio_write(h, LED1, 0)
          lgpio.gpio_write(h, LED2, 0)
          lgpio.gpiochip_close(h)
  
  
new_contents: import time
  import lgpio
  
  #17: location 11 Header pin
  #27: location 13 Header pin
  #22: location 15 Header pin
  
  LED0 = 17
  LED1 = 27
  LED2 = 22
  
  if __name__=="__main__":
  
      print ("...Start...")
  
      # open the gpio chip and set the LED pin as output
      h = lgpio.gpiochip_open(0)
      print (lgpio.gpio_claim_output(h, LED0))
      lgpio.gpio_claim_output(h, LED1)
      lgpio.gpio_claim_output(h, LED2)
  
      try:
  
          while True:
              # Turn the GPIO pin low
              lgpio.gpio_write(h, LED0, 0)
              lgpio.gpio_write(h, LED1, 0)
              lgpio.gpio_write(h, LED2, 0)
              print ('GIO', 'is On')
              time.sleep(90)
  
              # Turn the GPIO pin high
              lgpio.gpio_write(h, LED0, 1)
              lgpio.gpio_write(h, LED1, 1)
              lgpio.gpio_write(h, LED2, 1)
              print ('GIO', 'is Off') #LED 보드 구현에 따라, H->On, L->On 이 다를수 있음
              time.sleep(1)
  
  
      except KeyboardInterrupt:
          lgpio.gpio_write(h, LED0, 1)
          lgpio.gpio_write(h, LED1, 1)
          lgpio.gpio_write(h, LED2, 1)
          lgpio.gpiochip_close(h)
  
  
subject: Update led_blink_onetime.py