This is another power control hack along the lines of the serial controlled power outlet. Instead of only managing a printer, [Brent] uses the IO lines of the parallel port to drive some SSRs in order to turn off all of his peripheral devices – think lamps, speakers, scanners, etc. He posted the whole thing over on instructables.
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Ohhh, i got excited then, i was hoping it wasn’t going to be lots of relays($$
Arg!! only half my post is there, o well its a pointless post now, didn’t see that they were solid state relays
This is a great idea. If I ever get the time, I’m gonna hook up something like this on 5/12Vdc for all my extra case fans and lights and stuff.
looks like you can do about 3amps for 5$ ea.
http://www.futurlec.com/RelSS.shtml
huh, neat and tidy ))
Worked for a company that did something similar in 1985. using S100 based computer to control a machine. Used a parallel port (Printer port)send a binary word To the port ie 10001101. each 1 on the output turned on a device, each 0 turned off. Easy to implement, worked great.