1  """
 2  This demo will fill the screen with white, draw a black box on top
 3  and then print Hello World! in the center of the display
 4  
 5  This example is for use on (Linux) computers that are using CPython with
 6  Adafruit Blinka to support CircuitPython libraries. CircuitPython does
 7  not support PIL/pillow (python imaging library)!
 8  """
 9  
10  import board
11  import busio
12  import digitalio
13  from PIL import Image, ImageDraw, ImageFont
14  import adafruit_sharpmemorydisplay
15  
16  # Colors
17  BLACK = 0
18  WHITE = 255
19  
20  # Parameters to Change
21  BORDER = 5
22  FONTSIZE = 10
23  
24  spi = busio.SPI(board.SCK, MOSI=board.MOSI)
25  scs = digitalio.DigitalInOut(board.D6)  # inverted chip select
26  
27  # display = adafruit_sharpmemorydisplay.SharpMemoryDisplay(spi, scs, 96, 96)
28  display = adafruit_sharpmemorydisplay.SharpMemoryDisplay(spi, scs, 144, 168)
29  
30  # Clear display.
31  display.fill(1)
32  display.show()
33  
34  # Create blank image for drawing.
35  # Make sure to create image with mode '1' for 1-bit color.
36  image = Image.new("1", (display.width, display.height))
37  
38  # Get drawing object to draw on image.
39  draw = ImageDraw.Draw(image)
40  
41  # Draw a black background
42  draw.rectangle((0, 0, display.width, display.height), outline=BLACK, fill=BLACK)
43  
44  # Draw a smaller inner rectangle
45  draw.rectangle(
46      (BORDER, BORDER, display.width - BORDER - 1, display.height - BORDER - 1),
47      outline=WHITE,
48      fill=WHITE,
49  )
50  
51  # Load a TTF font.
52  font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", FONTSIZE)
53  
54  # Draw Some Text
55  text = "Hello World!"
56  (font_width, font_height) = font.getsize(text)
57  draw.text(
58      (display.width // 2 - font_width // 2, display.height // 2 - font_height // 2),
59      text,
60      font=font,
61      fill=BLACK,
62  )
63  
64  # Display image
65  display.image(image)
66  display.show()