to add IR remote capability.
http://web2.airmail.net/will/str0g3.html
http://www.howstuffworks.com/inside-rc.htm
http://www.web-ee.com/Schematics/Remote_dimmer/rdimmer.htm
PIC based remote controller for IR and wired Control-S bus
http://www.brouhaha.com/~eric/pic/controls.html
http://www.web-ee.com/Electronic-Projects/projects/remote_extender1/index.shtml
Originally published in Electronics and Beyond February 1997
http://www.electronic-projects.net/Electronic-Projects/projects/remote_extender2/index.shtml
http://www.mitedu.freeserve.co.uk/Circuits/Interface/irext3.htm
IR transmitter, receiver, switch and light dimmer
http://www.electronic-projects.net/Electronic-Projects/projects/remote_light/index.shtml