1  # SPDX-FileCopyrightText: 2020 Limor Fried for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  # This example shows how to use text and graphics to create custom signage
 6  
 7  import time
 8  import adafruit_display_text.label
 9  import board
10  import displayio
11  import framebufferio
12  import rgbmatrix
13  import terminalio
14  
15  # If there was a display before (protomatter, LCD, or E-paper), release it so
16  # we can create ours
17  displayio.release_displays()
18  
19  matrix = rgbmatrix.RGBMatrix(
20      width=64, bit_depth=4,
21      rgb_pins=[board.MTX_R1, board.MTX_G1, board.MTX_B1, board.MTX_R2, board.MTX_G2, board.MTX_B2],
22      addr_pins=[board.MTX_ADDRA, board.MTX_ADDRB, board.MTX_ADDRC, board.MTX_ADDRD],
23      clock_pin=board.MTX_CLK, latch_pin=board.MTX_LAT, output_enable_pin=board.MTX_OE)
24  
25  # Associate the RGB matrix with a Display so that we can use displayio features
26  display = framebufferio.FramebufferDisplay(matrix, auto_refresh=False)
27  display.rotation = 180
28  
29  R = adafruit_display_text.label.Label(
30      terminalio.FONT,
31      color=0xff0000,
32      scale=3, x=2, y=13,
33      text="R")
34  B = adafruit_display_text.label.Label(
35      terminalio.FONT,
36      color=0x0000ff,
37      scale=3, x=24, y=13,
38      text="B")
39  G = adafruit_display_text.label.Label(
40      terminalio.FONT,
41      color=0x00ff00,
42      scale=3, x=46, y=13,
43      text="G")
44  
45  # Put each line of text into a Group, then show that group.
46  g = displayio.Group()
47  g.append(R)
48  g.append(B)
49  g.append(G)
50  display.show(g)
51  display.auto_refresh = True
52  
53  
54  # CircuitPython 6 & 7 compatible
55  bitmap_file = open("/rbg.bmp", "rb")
56  # Setup the file as the bitmap data source
57  bitmap = displayio.OnDiskBitmap(bitmap_file)
58  # Create a TileGrid to hold the bitmap
59  tile_grid = displayio.TileGrid(
60      bitmap,
61      pixel_shader=getattr(bitmap, 'pixel_shader', displayio.ColorConverter())
62  )
63  
64  # # CircuitPython 7+ compatible
65  # # Setup the filename as the bitmap data source
66  # bitmap = displayio.OnDiskBitmap("/rbg.bmp")
67  # # Create a TileGrid to hold the bitmap
68  # tile_grid = displayio.TileGrid(bitmap, pixel_shader=bitmap.pixel_shader)
69  
70  
71  print(dir(tile_grid))
72  
73  while True:
74      while g:
75          g.pop()
76  
77      g.append(tile_grid)
78      for y in range(bitmap.height+32):
79          tile_grid.y = 32-y
80          time.sleep(0.05)
81  
82      g.pop()
83  
84      g.append(R)
85      time.sleep(1)
86      g.append(B)
87      time.sleep(1)
88      g.append(G)
89      time.sleep(1)