just did the search - there seems to be lots of options and hardware types available - I'll dig in, but can I ask for some advice re what the most basic models/types would be to start looking at for my purpose, so:
a) Arduino PC USB module (i.e. that stays connected to my PC, so that my PC program can send the on/off commands to my remote unit) - also what software/SDK would I use on the PC? Would it be a C program? So the software on the module wouldn't be very smart but merely pass on the requests that my own software running on the PC works out (in fact it would be a home automation system picking up X10 inputs from remote X10 sensors)
b) Arduino RF add on for PC USB module - to remotely send
c) Arduino RF receiving model for remote end
d) Arduino Remote end module with either (a) several on/off pin outputs to drive individual LEDs, or (b) interface to an LED display (e.g. 4 character display for example). So this device would just need to know how to receive what the display needs to show, and then drive the display to show it. So it wouldn't be very smart so to speak
e) Arduino LED display (for option b above)
Does this make sense in terms of my interpretation of what I'd require to get things working here?
thanks