Ported examples from Raspberry Pi Guy Learn guide

examples/ssd1306_pillow_clock.py

@@ -0,0 +1,53 @@
+# 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)!
+#
+# Ported to Pillow by Melissa LeBlanc-Williams for Adafruit Industries from Code available at:
+# https://learn.adafruit.com/adafruit-oled-displays-for-raspberry-pi/programming-your-display
+
+# Imports the necessary libraries...
+import time
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1306
+
+# Setting some variables for our reset pin etc.
+RESET_PIN = digitalio.DigitalInOut(board.D4)
+
+i2c = board.I2C()
+oled = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c, addr=0x3d, reset=RESET_PIN)
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Create blank image for drawing.
+image = Image.new('1', (oled.width, oled.height))
+draw = ImageDraw.Draw(image)
+
+# Load a font in 2 different sizes.
+font = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 16)
+font2 = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 24)
+
+offset = 0 # flips between 0 and 32 for double buffering
+
+while True:
+    # write the current time to the display after each scroll
+    draw.rectangle((0, 0, oled.width, oled.height * 2), outline=0, fill=0)
+    text = time.strftime("%A")
+    draw.text((0, 0), text, font=font, fill=255)
+    text = time.strftime("%e %b %Y")
+    draw.text((0, 14), text, font=font, fill=255)
+    text = time.strftime("%X")
+    draw.text((0, 36), text, font=font2, fill=255)
+    oled.image(image)
+    oled.show()
+
+    time.sleep(1)
+
+    for i in range(0, oled.height//2):
+        offset = (offset + 1) % oled.height
+        oled.write_cmd(adafruit_ssd1306.SET_DISP_START_LINE | offset)
+        oled.show()
+        time.sleep(0.001)

examples/ssd1306_pillow_demo.py

@@ -1,6 +1,10 @@
 """
 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

examples/ssd1306_pillow_image_display.py

@@ -0,0 +1,30 @@
+# 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)!
+#
+# Ported to Pillow by Melissa LeBlanc-Williams for Adafruit Industries from Code available at:
+# https://learn.adafruit.com/adafruit-oled-displays-for-raspberry-pi/programming-your-display
+
+# Imports the necessary libraries...
+import sys
+import board
+import digitalio
+from PIL import Image
+import adafruit_ssd1306
+
+# Setting some variables for our reset pin etc.
+RESET_PIN = digitalio.DigitalInOut(board.D4)
+
+i2c = board.I2C()
+oled = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c, addr=0x3d, reset=RESET_PIN)
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Open, resize, and convert image to Black and White
+image = Image.open(sys.argv[1]).resize((oled.width, oled.height), Image.BICUBIC).convert('1')
+
+# Display the converted image
+oled.image(image)
+oled.show()

examples/ssd1306_pillow_ip.py

@@ -0,0 +1,64 @@
+# 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)!
+#
+# Ported to Pillow by Melissa LeBlanc-Williams for Adafruit Industries from Code available at:
+# https://learn.adafruit.com/adafruit-oled-displays-for-raspberry-pi/programming-your-display
+
+# Imports the necessary libraries...
+import socket
+import fcntl
+import struct
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1306
+
+# This function allows us to grab any of our IP addresses
+def get_ip_address(ifname):
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    return socket.inet_ntoa(fcntl.ioctl(
+        s.fileno(),
+        0x8915,  # SIOCGIFADDR
+        struct.pack('256s', str.encode(ifname[:15]))
+    )[20:24])
+
+# Setting some variables for our reset pin etc.
+RESET_PIN = digitalio.DigitalInOut(board.D4)
+TEXT = ''
+
+# Very important... This lets py-gaugette 'know' what pins to use in order to reset the display
+i2c = board.I2C()
+oled = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c, addr=0x3d, reset=RESET_PIN)
+
+# This sets TEXT equal to whatever your IP address is, or isn't
+try:
+    TEXT = get_ip_address('wlan0') # WiFi address of WiFi adapter. NOT ETHERNET
+except IOError:
+    try:
+        TEXT = get_ip_address('eth0') # WiFi address of Ethernet cable. NOT ADAPTER
+    except IOError:
+        TEXT = ('NO INTERNET!')
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Create blank image for drawing.
+image = Image.new('1', (oled.width, oled.height))
+draw = ImageDraw.Draw(image)
+
+# Load a font in 2 different sizes.
+font = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 28)
+font2 = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 14)
+
+# Draw the text
+intro = 'Hello!'
+ip = 'Your IP Address is:'
+draw.text((0, 46), TEXT, font=font2, fill=255)
+draw.text((0, 0), intro, font=font, fill=255)
+draw.text((0, 30), ip, font=font2, fill=255)
+
+# Display image
+oled.image(image)
+oled.show()

examples/ssd1306_pillow_text.py

@@ -0,0 +1,40 @@
+# 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)!
+#
+# Ported to Pillow by Melissa LeBlanc-Williams for Adafruit Industries from Code available at:
+# https://learn.adafruit.com/adafruit-oled-displays-for-raspberry-pi/programming-your-display
+
+# Imports the necessary libraries...
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1306
+
+# Setting some variables for our reset pin etc.
+RESET_PIN = digitalio.DigitalInOut(board.D4)
+
+# Very important... This lets py-gaugette 'know' what pins to use in order to reset the display
+i2c = board.I2C()
+oled = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c, addr=0x3d, reset=RESET_PIN)
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Create blank image for drawing.
+image = Image.new('1', (oled.width, oled.height))
+draw = ImageDraw.Draw(image)
+
+# Load a font in 2 different sizes.
+font = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 28)
+font2 = ImageFont.truetype('/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', 14)
+
+# Draw the text
+draw.text((0, 0), 'Hello!', font=font, fill=255)
+draw.text((0, 30), 'Hello!', font=font2, fill=255)
+draw.text((34, 46), 'Hello!', font=font2, fill=255)
+
+# Display image
+oled.image(image)
+oled.show()