The x10d daemon is used to control and monitor X-10 based equipment. The primary hardware components used are X-10 PowerHouse controller/modules (aka. Radio Shack Plug 'n Power).
The ird daemon allows users to control infrared devices such as stereo and tv equipment. There is support for several different infrared controllers.
The mld daemon allows temperature monitoring of a building or piece of equipment such as a computer.
The hcs2d daemon connects rcdaemon services to the Circuit Cellar Inc. (tm) HCS2D Supervisory Controller.
The Lcd2 code used by xmltherm and other control apps.
The Xc widget package used by control apps.
The Xfwf package can be found in the ports collection: /usr/ports/x11/FWF
Future daemons will include the ability to handle voice input.
You can take a look at the (primitive) setup documentation. There is also an in-progress html documentation page.
PLIX is a trademark of Micromint, Inc.
Radio Shack and Plug 'n Power are trademarks of Tandy Corp.