Do you ever find yourself arriving home from work to a cold house? With this project from kohleick you can send your heating system an SMS while you are driving home, and arrive to a toasty warm house. The controller runs off an Arduino Uno and custom shields which control timing, temperature measurement and telecommunications. Kohleick has designed the controller to fit unobtrusively into a picture frame. The controller has full functionality including six operating modes, temperature measurement and full SMS control. Additionally, the heating controller features a phone book which specifies which numbers can send commands to the heating system.
This is a great project to develop your maker skills and could potentially help you save big on energy bills. Although it is quite a complicated project, the instructions are well set out and explained. To get started check out the following link.