I've entertained the idea of using a PC to control a grow op- I have several relay cards for a PCI bus laying around due to my line o' work.

However, I decided use timers, both mechanical and digital for one reason- their operating systems don't crash!
Al B. Fuct Reviewed by Al B. Fuct on . Automation Does anybody still use old fashion timers, with old computer around. Why would anybody us a a timer , when you can set up to 8 channels with a printer port relay $36 to $120 and a controler program likd relayrunner.With over 15 plus years of using a computer with one failure,(dam compute battery went bad the same day as the power went out) It has a restart thats part of the program. Do a search for relayrunner, it has a free test , so you can start it up , under emulation mode , make all your Rating: 5