This little python script (daemon) will poll for the status of all window sensors known to a MAX Cube system (http://www.eq-3.de) and check for open windows.
It will then check the temperature at the location of your house using Open Weather Map (http://openweathermap.org), and if the temperature is bellow a specified threshold it will send a notification using a notifier plugin.
Today the only available notifier plugin is using the Pushover service (https://pushover.net) to send notifications e.g. to mobile phones.
It has been created to safe energy by reminding you to close your windows after ventilation.
See this github page for more details: https://github.com/yfauser/maxwindownotify