There is nothing worse than getting home only to wait what can seem to be ages for a simple cup of coffee, what would be better is if you could tweet your coffee machine to switch on so that when you arrive the coffee is ready! Well you could use Tweet-a-Pot; make it yourself by following the instructions of builder Frenzy, a QA engineer at the cool site Instructables.com.
These are the features and specs for the very useful Tweet-A-Pot device;
Power Switch Tail, this is basically a relay that is used to interface with the AC voltage
Arduino Board (any will do)
Computer running the arduino IDE and Python
Drip Coffee Pot
Source [The Creators Project]