cheap_lcd.py

#!/usr/bin/python
from Adafruit_CharLCD import Adafruit_CharLCD
from subprocess import *
from time import sleep, strftime
from datetime import datetime

lcd = Adafruit_CharLCD()

cmd = "ip addr show eth0 | grep inet | awk '{print $2}' | cut -d/ -f1"  # linux command to get ip address

#   columns, lines
lcd.begin(16,1)

def run_cmd(cmd):
    p = Popen(cmd, shell=True, stdout=PIPE)
    output = p.communicate()[0]
    return output

while 1:
    lcd.clear()
    ipaddr = run_cmd(cmd)
    lcd.message(datetime.now().strftime('%d %b %H:%M\n')) # 1st row, display current time
    lcd.message('IP %s' % (ipaddr))                       # 2nd row, display an ip address
    sleep(2)