Alex Eames owns a house in Poland with a heating problem: the furnace and the general system are like something out of the stone age and Poland, being the way it is, is often very cold. So, he’s brought a bit of Raspberry Pi and RasPiO Duino know-how to the situation to allow him to monitor the coal-fired furnace and room temperatures. He hopes to eventually have a fully-fledged heating controller system with multiple room monitoring. Read and see how he’s done all this here.