Now works with 128x64 displays, added Pillow Demo

Author: makermelissa

adafruit_ssd1305.py

@@ -109,7 +109,7 @@ def init_display(self):
                 # timing and driving scheme
                 0xd5, 0x80, #SET_DISP_CLK_DIV
                 0xa0 | 0x01, # column addr 127 mapped to SEG0 SET_SEG_REMAP
-                0xa8, 0x1f,#SET_MUX_RATIO
+                0xa8, self.height - 1, #SET_MUX_RATIO
                 0xd3, 0x00, #SET_DISP_OFFSET
                 0xad, 0x8e, #Set Master Configuration
                 0xd8, 0x05, #Set Area Color Mode On/Off & Low Power Display Mode

examples/ssd1305_pillow_demo.py

@@ -0,0 +1,63 @@
+"""
+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
+
+This example is for use on (Linux) computers that are using CPython with
+Adafruit Blinka to support CircuitPython libraries. CircuitPython does
+not support PIL/pillow (python imaging library)!
+"""
+
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1305
+
+# Define the Reset Pin
+oled_reset = digitalio.DigitalInOut(board.D4)
+
+# Change these
+# to the right size for your display!
+WIDTH = 128
+HEIGHT = 64     # Change to 32 if needed
+BORDER = 8
+
+# Use for SPI
+spi = board.SPI()
+oled_cs = digitalio.DigitalInOut(board.D5)
+oled_dc = digitalio.DigitalInOut(board.D6)
+oled = adafruit_ssd1305.SSD1305_SPI(WIDTH, HEIGHT, spi, oled_dc, oled_reset, oled_cs)
+
+# Use for I2C.
+#i2c = board.I2C()
+#oled = adafruit_ssd1305.SSD1305_I2C(WIDTH, HEIGHT, i2c, addr=0x3c, reset=oled_reset)
+
+# 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()

examples/ssd1305_simpletest.py

@@ -21,3 +21,11 @@
 display.fill(0)
 
 display.show()
+
+# Set a pixel in the origin 0,0 position.
+display.pixel(0, 0, 1)
+# Set a pixel in the middle 64, 16 position.
+display.pixel(64, 16, 1)
+# Set a pixel in the opposite 127, 31 position.
+display.pixel(127, 31, 1)
+display.show()