1  # SPDX-FileCopyrightText: 2021 Jeff Epler for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import time
 6  import adafruit_dotstar
 7  from rainbowio import colorwheel
 8  import board
 9  import touchio
10  
11  pixel = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=.1)
12  
13  touch = touchio.TouchIn(board.D1)
14  
15  hue = 0
16  while True:
17      hue = hue + touch.value * 3
18      if hue > 255:  # Wrap back around to red
19          hue = hue - 255
20      pixel[0] = colorwheel(hue)
21      time.sleep(.05)