1  # Copyright (c) 2014 Adafruit Industries
 2  # Author: Tony DiCola
 3  #
 4  # Permission is hereby granted, free of charge, to any person obtaining a copy
 5  # of this software and associated documentation files (the "Software"), to deal
 6  # in the Software without restriction, including without limitation the rights
 7  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 8  # copies of the Software, and to permit persons to whom the Software is
 9  # furnished to do so, subject to the following conditions:
10  #
11  # The above copyright notice and this permission notice shall be included in
12  # all copies or substantial portions of the Software.
13  #
14  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20  # THE SOFTWARE.
21  
22  # This example is for use on (Linux) computers that are using CPython with
23  # Adafruit Blinka to support CircuitPython libraries. CircuitPython does
24  # not support PIL/pillow (python imaging library)!
25  
26  from board import SCL, SDA
27  import busio
28  from PIL import Image, ImageDraw, ImageFont
29  import adafruit_ssd1306
30  
31  # Create the I2C interface.
32  i2c = busio.I2C(SCL, SDA)
33  
34  # Create the SSD1306 OLED class.
35  # The first two parameters are the pixel width and pixel height.  Change these
36  # to the right size for your display!
37  disp = adafruit_ssd1306.SSD1306_I2C(128, 32, i2c)
38  
39  # Note you can change the I2C address, or add a reset pin:
40  # disp = adafruit_ssd1306.SSD1306_I2C(128, 32, i2c, addr=0x3c, reset=reset_pin)
41  
42  # Clear display.
43  disp.fill(0)
44  disp.show()
45  
46  # Create blank image for drawing.
47  # Make sure to create image with mode '1' for 1-bit color.
48  width = disp.width
49  height = disp.height
50  image = Image.new("1", (width, height))
51  
52  # Get drawing object to draw on image.
53  draw = ImageDraw.Draw(image)
54  
55  # Draw a black filled box to clear the image.
56  draw.rectangle((0, 0, width, height), outline=0, fill=0)
57  
58  # Draw some shapes.
59  # First define some constants to allow easy resizing of shapes.
60  padding = 2
61  shape_width = 20
62  top = padding
63  bottom = height - padding
64  # Move left to right keeping track of the current x position for drawing shapes.
65  x = padding
66  # Draw an ellipse.
67  draw.ellipse((x, top, x + shape_width, bottom), outline=255, fill=0)
68  x += shape_width + padding
69  # Draw a rectangle.
70  draw.rectangle((x, top, x + shape_width, bottom), outline=255, fill=0)
71  x += shape_width + padding
72  # Draw a triangle.
73  draw.polygon(
74      [(x, bottom), (x + shape_width / 2, top), (x + shape_width, bottom)],
75      outline=255,
76      fill=0,
77  )
78  x += shape_width + padding
79  # Draw an X.
80  draw.line((x, bottom, x + shape_width, top), fill=255)
81  draw.line((x, top, x + shape_width, bottom), fill=255)
82  x += shape_width + padding
83  
84  # Load default font.
85  font = ImageFont.load_default()
86  
87  # Alternatively load a TTF font.  Make sure the .ttf font file is in the
88  # same directory as the python script!
89  # Some other nice fonts to try: http://www.dafont.com/bitmap.php
90  # font = ImageFont.truetype('Minecraftia.ttf', 8)
91  
92  # Write two lines of text.
93  draw.text((x, top), "Hello", font=font, fill=255)
94  draw.text((x, top + 20), "World!", font=font, fill=255)
95  
96  # Display image.
97  disp.image(image)
98  disp.show()