There are quite a few HOWTOs out here like this one:
http://www.linuxhq.com/ldp/howto/mini/Home-Electrical-Control/index.html
which basically drives a relay switch off of the parallel port of a Linux box.
Cool, this is the kind of thing that I'm looking for, now to try and figure out what
would be required for it to work on a Serial Port...
Zane
--
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
|
http://www.aracnet.com/~healyzh/ |