Okay. I have a basic scheme of the things uh which are implemented. Um basically this is all there is. There's just one chip. There are a few buttons connected. Uh the buttons are lit. And the whole thing is transmitted by a infrared li diode , and there is not a power source here.  So that's basically the total design of this piece of equipment.
So it's fairly easy.
There's nothing more to it. It's fairly easy. It's been done many times before ,
Okay.