text: # SPDX-FileCopyrightText: 2017 Kattni Rembor for Adafruit Industries
  #
  # SPDX-License-Identifier: MIT
  
  import time
  from adafruit_circuitplayground.express import cpx
  
  while True:
      cpx.red_led = not cpx.red_led
      time.sleep(0.5)
  