Alex Eames at RasPi.TV has invented a new board that plugs into the Raspberry Pi. Called a RasPiO duino, it’s programmable from the Pi and will also work away from the Pi providing it’s given a power source. He has a problem at his house over in Poland – the basement gets so cold that the water in an inlet pipe can freeze (and make the pipe burst). So, he’s used a combination of his new board, some relays and some heat lamps to Macgyver a solution together. There’s more detail and a video over on his blog.