1  """
 2  This test will initialize the display using displayio and draw a solid green
 3  background, a smaller purple rectangle, and some yellow text.
 4  
 5  Pinouts are for the 2.8" TFT Shield
 6  """
 7  import board
 8  import terminalio
 9  import displayio
10  from adafruit_display_text import label
11  import adafruit_ili9341
12  
13  # Release any resources currently in use for the displays
14  displayio.release_displays()
15  
16  # Use Hardware SPI
17  spi = board.SPI()
18  
19  # Use Software SPI if you have a shield with pins 11-13 jumpered
20  # import busio
21  # spi = busio.SPI(board.D11, board.D13)
22  
23  tft_cs = board.D10
24  tft_dc = board.D9
25  
26  display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
27  display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)
28  
29  # Make the display context
30  splash = displayio.Group(max_size=10)
31  display.show(splash)
32  
33  # Draw a green background
34  color_bitmap = displayio.Bitmap(320, 240, 1)
35  color_palette = displayio.Palette(1)
36  color_palette[0] = 0x00FF00  # Bright Green
37  
38  bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
39  
40  splash.append(bg_sprite)
41  
42  # Draw a smaller inner rectangle
43  inner_bitmap = displayio.Bitmap(280, 200, 1)
44  inner_palette = displayio.Palette(1)
45  inner_palette[0] = 0xAA0088  # Purple
46  inner_sprite = displayio.TileGrid(inner_bitmap, pixel_shader=inner_palette, x=20, y=20)
47  splash.append(inner_sprite)
48  
49  # Draw a label
50  text_group = displayio.Group(max_size=10, scale=3, x=57, y=120)
51  text = "Hello World!"
52  text_area = label.Label(terminalio.FONT, text=text, color=0xFFFF00)
53  text_group.append(text_area)  # Subgroup for text scaling
54  splash.append(text_group)
55  
56  while True:
57      pass