Home automation with ATTiny and mobile phone

In our cottage in the woods we don't have a reliable internet connection. In the winter it is really cold when we enter and it takes a couple of hours before the house warms up when turning on the floor heating after we come in.I wanted to be able to turn the heating on before we arrive, and enter a...
By: MaxJanssen

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from Instructables: exploring - technology http://ift.tt/1B7NyEn