Merge pull request #30 from makermelissa/master

Added PIL/Pillow Example that does the equivalent of displayio

Author: ladyada

examples/ssd1306_pillow_demo.py

@@ -0,0 +1,59 @@
+"""
+This demo will fill the screen with white, draw a black box on top
+and then print Hello World! in the center of the display
+"""
+
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1306
+
+# Define the Reset Pin
+oled_reset = digitalio.DigitalInOut(board.D4)
+
+# Change these
+# to the right size for your display!
+WIDTH = 128
+HEIGHT = 32     # Change to 64 if needed
+BORDER = 5
+
+# Use for I2C.
+i2c = board.I2C()
+oled = adafruit_ssd1306.SSD1306_I2C(WIDTH, HEIGHT, i2c, addr=0x3c, reset=oled_reset)
+
+# Use for SPI
+spi = board.SPI()
+oled_cs = digitalio.DigitalInOut(board.D5)
+oled_dc = digitalio.DigitalInOut(board.D6)
+oled = adafruit_ssd1306.SSD1306_SPI(WIDTH, HEIGHT, spi, oled_dc, oled_reset, oled_cs)
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Create blank image for drawing.
+# Make sure to create image with mode '1' for 1-bit color.
+image = Image.new('1', (oled.width, oled.height))
+
+# Get drawing object to draw on image.
+draw = ImageDraw.Draw(image)
+
+# Draw a white background
+draw.rectangle((0, 0, oled.width, oled.height), outline=255, fill=255)
+
+# Draw a smaller inner rectangle
+draw.rectangle((BORDER, BORDER, oled.width - BORDER - 1, oled.height - BORDER - 1),
+               outline=0, fill=0)
+
+# Load default font.
+font = ImageFont.load_default()
+
+# Draw Some Text
+text = "Hello World!"
+(font_width, font_height) = font.getsize(text)
+draw.text((oled.width//2 - font_width//2, oled.height//2 - font_height//2),
+          text, font=font, fill=255)
+
+# Display image
+oled.image(image)
+oled.show()