>I'm not so interested that much in an IR link, but actually very >interested in a radio link (ti protocall, of course). In a recent issue of >Popular Science, they had something about a new chip that handles >everything for radio, all you have to do is interface it, and presto. I'll >go find the docs a bit later. They said the chip was 3 bucks. pretty good. National semiconductor has a chip just like it. Its $4.70.