Now you can take advantage of your house wiring instead of relying on a complex mesh network for home automation of data acquisition.
Note: You will need to supply at least 1Amp for the shield to function correctly.
Note: Please be aware that connecting anything to mains wiring can be dangerous. Use caution when playing with anything that is connected to a high voltage line. If you don't know what you're doing then read up first or have someone teach you, it's better than learning 'the hard way.'