# Copyright (c) 2014 Adafruit Industries # Author: Carter Nelson # Modified from matrix8x8_test.py by Tony DiCola # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. import time from PIL import Image from PIL import ImageDraw from Adafruit_LED_Backpack import Matrix8x16 # Create display instance on default I2C address (0x70) and bus number. display = Matrix8x16.Matrix8x16() # Alternatively, create a display with a specific I2C address and/or bus. # display = Matrix8x16.Matrix8x16(address=0x74, busnum=1) # On BeagleBone, try busnum=2 if IOError occurs with busnum=1 # display = Matrix8x16.Matrix8x16(address=0x74, busnum=2) # Initialize the display. Must be called once before using the display. display.begin() # Run through each pixel individually and turn it on. for x in range(8): for y in range(16): # Clear the display buffer. display.clear() # Set pixel at position i, j to on. To turn off a pixel set # the last parameter to 0. display.set_pixel(x, y, 1) # Write the display buffer to the hardware. This must be called to # update the actual display LEDs. display.write_display() # Delay for half a second. time.sleep(0.1) # Draw some shapes using the Python Imaging Library. # Clear the display buffer. display.clear() # First create an 8x16 1 bit color image. image = Image.new('1', (8, 16)) # Then create a draw instance. draw = ImageDraw.Draw(image) # Draw a rectangle with colored outline draw.rectangle((0,0,7,15), outline=255, fill=0) # Draw an X with two lines. draw.line((1,1,6,14), fill=255) draw.line((1,14,6,1), fill=255) # Draw the image on the display buffer. display.set_image(image) # Draw the buffer to the display hardware. display.write_display() # See the SSD1306 library for more examples of using the Python Imaging Library # such as drawing text: https://github.com/adafruit/Adafruit_Python_SSD1306