1  # SPDX-FileCopyrightText: 2022 Phillip Burgess for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  """
 6  Very minimal image viewer for 6X square RGB LED matrices.
 7  
 8  usage: sudo python imageviewer.py [filename]
 9  """
10  
11  import time
12  import sys
13  from rgbmatrix import RGBMatrix, RGBMatrixOptions
14  from PIL import Image
15  
16  if len(sys.argv) < 2:
17      sys.exit("Requires an image argument")
18  else:
19      image_file = sys.argv[1]
20  
21  image = Image.open(image_file).convert("RGB")
22  
23  # Hardcoded matrix config; commandline args ignored
24  options = RGBMatrixOptions()
25  options.rows = 64
26  options.cols = 64
27  options.chain_length = 6
28  options.parallel = 1
29  options.hardware_mapping = "adafruit-hat-pwm"
30  options.gpio_slowdown = 4
31  
32  matrix = RGBMatrix(options=options)
33  
34  # Scale image to fit 6X matrix chain
35  image.thumbnail((matrix.width, matrix.height), Image.ANTIALIAS)
36  
37  matrix.SetImage(image)
38  
39  try:
40      print("Press CTRL-C to stop.")
41      while True:
42          time.sleep(100)
43  except KeyboardInterrupt:
44      sys.exit(0)