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(grating sound) I thought I had talked you out of doing this. More accurately you decided it wasn't worth the effort. And I thought it was about the hardware. The computer part is "easy" (well, less of an unknown) compared to building reliable line drivers. Nonetheless, what do you have now? I assume you have the sprinklers already, and they must have come with some kind of controls? Just switches? A cheap timer? Mechanical timer? I'd think they could produce electronic ones cheaper once they got a good design. Maybe there is something in the category of the "cheap timer" that we can glue an interface onto and let that be the control interface. As for Linux + serial, you are treading in the first footsteps that I did on my way into this control hardware stuff. And it was as simple as echo "SW 1 ON" > /dev/ttyS1 or something like that to spit a command out the serial port. And that can be put into a shell script and so forth, so the "just want to see it work" phase is pretty easy to come by. I expect the USB to serial thing will work transparently, but I'll wait to hear that someone has tried this. Barry (Hoping we'll hear from Gus on the subject) -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-newbie
