1  # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  """CircuitPython U2IF Example for QT2040 Trinkey"""
 6  import board
 7  import digitalio
 8  import neopixel
 9  
10  pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
11  
12  button = digitalio.DigitalInOut(board.BUTTON)
13  button.switch_to_input(pull=digitalio.Pull.UP)
14  
15  while True:
16      if not button.value:
17          pixel.fill((255, 0, 0))
18      else:
19          pixel.fill((0, 0, 0))