I'm tryna find a way to set up essentially a remote switch. You basically have two parts:
Your transmitter: Controlled by the arduino (ie. pressing a button wired on the breadboard causes it to go HIGH or something of that nature) it would send out a signal for a set amount of time when that particular button is pressed.
Your receiver: on some sort of independent circuit with a lithium battery or something of that nature that, while the signal is received, would close a circuit and allow power to go through to an LED (or a buzzer or something) for the period that the signal is received. I want it to act as basically a remote switch
Now Ideally I want to have a central transmitter that'd work on several frequencies and wire it so that different buttons would would tell the arduino to tell the transmitter which ones to activate. However, having multiple transmitters which only interact with their partnered receivers would work fine.
THE PROBLEM HERE: For the most part, my team and I have only found devices that require the receiver to be connected to an arduino. That is the Xbee transmitters, the 2.4ghz transceivers, and 3.15 MHz transmitter/receiver pair, and even one of those key fob transmitters with a little receiver. ALL of those seem to require that the receiver be connected to an arduino.
Something like this looks promising: http://www.instructables.com/id/RF-315433-MHz-Transmitter-receiver-Module-and-Ardu/step4/One-Transmitter-Multi-Receiver/
But again, I think it also requires that the receiver be connected to arduino....
Is that something that is unavoidable that i need some kind of microcontroller or more than one arduino?
What dyall think? Thanks in advance