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Appliance control using a mobile phone and SMS messages

· 4 min read

Hey, how are you doing? (: Since there was a week between the end of the GSoC and the start of my studies, I decided to do some hobby hacking.

I have some remote (50 km away) appliances (electric heater) that I would like to control from wherever I am. The SMS service is a very compelling solution for this kind of problem. The main challenge is to figure out how to make a mobile phone to a relay that can switch on and off things.