using an 20x2 LCD display to show time, date and departure of next train into city (due to small screen only one direction) if there are less then 3min until departure, next train is shown instead script wait and backlight of LCD is turned off when i'm not at home or sleep, measured by pinging computer, smartphone etc in local network data is collected from live.kvv.de via json
to do: get road works / disruption / changes of train route from kvv
to get it work: install python with json, urllib2 libraries, get Adafruit_CharLCD, Adafruit_MCP230xx, Adafruit_I2C from github and create folder /var/tmpram