I guess you could implement the rolling code output for the radio modules if it was documented somewhere, but I think it would be far easier to just wire up existing remotes as you suggest.
WiFi/Ethernet control would be great - and it shouldn't be too difficult at all. I wrote something to control remote control sockets from WiFi. While it's quite basic, it might be good to get some ideas from...
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Sounds like a good project!
I guess you could implement the rolling code output for the radio modules if it was documented somewhere, but I think it would be far easier to just wire up existing remotes as you suggest.
WiFi/Ethernet control would be great - and it shouldn't be too difficult at all. I wrote something to control remote control sockets from WiFi. While it's quite basic, it might be good to get some ideas from...