I'm posting this here because I didn't think it fit well into any of the wireless forums. I need to replace wired buttons with some sort of RF key fob connection. All it needs to communicate are signals for UP DOWN LEFT RIGHT APPLY. Range is maybe 3m max. So, short range, low data rate. It should be dirt-simple (its OK if every key fob activates every receiver) and as always, cheap. So what is currently the best approach to do this? I'm always a decade behind on this kind of stuff!