1  """Simple test script for Adafruit 2.9" 296x128 tri-color display
 2  Supported products:
 3    * Adafruit 2.9" Tri-Color Display Breakout
 4    * https://www.adafruit.com/product/1028
 5  """
 6  
 7  import time
 8  import board
 9  import displayio
10  import adafruit_il0373
11  
12  # Used to ensure the display is free in CircuitPython
13  displayio.release_displays()
14  
15  # Define the pins needed for display use
16  # This pinout is for a Feather M4 and may be different for other boards
17  spi = board.SPI()  # Uses SCK and MOSI
18  epd_cs = board.D9
19  epd_dc = board.D10
20  epd_reset = board.D5
21  epd_busy = board.D6
22  
23  # Create the displayio connection to the display pins
24  display_bus = displayio.FourWire(
25      spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
26  )
27  time.sleep(1)  # Wait a bit
28  
29  # Create the display object - the third color is red (0xff0000)
30  display = adafruit_il0373.IL0373(
31      display_bus,
32      width=296,
33      height=128,
34      rotation=270,
35      busy_pin=epd_busy,
36      highlight_color=0xFF0000,
37  )
38  
39  # Create a display group for our screen objects
40  g = displayio.Group()
41  
42  # Display a ruler graphic from the root directory of the CIRCUITPY drive
43  f = open("/display-ruler.bmp", "rb")
44  
45  pic = displayio.OnDiskBitmap(f)
46  # Create a Tilegrid with the bitmap and put in the displayio group
47  t = displayio.TileGrid(pic, pixel_shader=displayio.ColorConverter())
48  g.append(t)
49  
50  # Place the display group on the screen
51  display.show(g)
52  
53  # Refresh the display to have it actually show the image
54  # NOTE: Do not refresh eInk displays sooner than 180 seconds
55  display.refresh()
56  print("refreshed")
57  
58  time.sleep(180)