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#!/usr/bin/env python
# This is a example of the usage of OLED 1.3'' 128x64 with I2C
# Import of the necessary libraries
import time
import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306
import Image
import ImageDraw
import ImageFont
import subprocess
# Raspberry Pi pin configuration:
RST = None # May be modified later
# 128x32 display with hardware I2C:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST)
# 128x64 display with hardware I2C:
disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST)
# Alternatively you can specify an explicit I2C bus number, for example
# with the 128x32 display you would use:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, i2c_bus=2)
# Initialize library.
# Clear display.
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
width = disp.width
height = disp.height
image ='1', (width, height))
# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# Draw a black filled box to clear the image.
draw.rectangle((0,0,width,height), outline=0, fill=0)
# First define some constants to allow easy resizing of shapes.
padding = 2
shape_width = 20
top = padding
bottom = height-padding
# Move left to right keeping track of the current x position for drawing shapes.
x = padding
# Load default font.
font = ImageFont.load_default()
# Alternatively load a TTF font.
# Some other nice fonts to try:
#font = ImageFont.truetype('Minecraftia.ttf', 10)
# Get IP address
cmd = "hostname -I | cut -d\' \' -f1"
IP = subprocess.check_output(cmd, shell = True )
# Get disk usage
cmd = "df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'"
Disk = subprocess.check_output(cmd, shell = True )
# Write text.
draw.text((x, top), 'WELCOME ABORD', font=font, fill=255)
draw.text((x,top+10),'SMART IDEA!', font=font, fill=255)
draw.text((x, top+20), '', font=font, fill=255)
# Writw IP
draw.text((x, top+35),"IP: " + str(IP), font=font, fill=255)
#Write disk usage
draw.text((x, top+45), str(Disk), font=font, fill=255)
# Display image.