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Control LED's via text with Arduino?

I would like to create an arduino setup that can turn LED's from RED to Green (and vice versa) via TEXT from registered cellphones. How can I do this? What equipment would i need to buy? I also plan on wiring the LED's over long distances so how would I wire/program the power supply? I heard that I would need relays, but where would I get those and how would I install them?

You need something like this
http://www.rfsolutions.co.uk/acatalog/Maestro_GSM_Modem.html

But you can BUY this item, which does what you want out of the box

http://www.rfsolutions.co.uk/acatalo/Protext_Industrial_remote_control2.html

You need a modem compatible with your local phone system, in most of the world a GSM modem will work, you need a SIM card too.

Then you need to look for a SMS comms library for the arduino. Relays may or may not be needed.

Steve
ilee1 (author)  steveastrouk5 years ago
I'm new to this, so could you further explain

"You need a modem compatible with your local phone system, in most of the world a GSM modem will work, you need a SIM card too"?

 Any links to resources would be helpful as well. Thanks for responding.