Control LED's via text with Arduino? Answered
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?