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GSM Arduino Latching Relay
Very neat and handy instructable. I want to make a setup similar to this for powering on my air condition before I come home from work (India is very hot !!) I will change to a heavy relay for the Air con but this system will not solve my problem because the place where I come from we get a lot unwanted telemarketing calls everyday which will probably result in the air con going on and off without purpose. Any idea how I can solve this problem? Other method which will solve this problem for sure is the usage of Bluetooth activated relay connected with android phone. But how do I make the command to android to turn on the Bluetooth relay when I am at work? May be specialized sms code! This would require programming skills which I don't have. Any comments would be helpful. thanks.
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