Oh, man, I fantasize about making one of these every time I take a shower. You can buy them from Koehler, I think. I've got the whole design planned out in my head. Coupla servos hooked up to a pair of water valves, a little temperature sensor, and a waterproof interface that's the same size as a 4 x 4 wall tile, just grout it in. Remembers the last temperature setting you set, and the water temperature doesn't swing all over the place when your spouse rinses a few breakfast dishes in the other room. Up/Down button the only user inputs. (they can turn the shower on with a conventional valve.) 3 digit LCD display. Would you need a small tank, to help mix the water and keep the thing from hunting for a temperature setting? Maybe one of those little mixing fins that fit inside a pipe, to mix the water good before it gets to the sensor? When the water's off, would the thing try to open the hot valve all the way, as it's tank cooled off and it helplessly tries to keep the right temperature when there's no water flow? Maybe that would be OK, since the coolled water in the "hot" side pipe could not scald anyone anyway. and on and on and on. Anybody gonna build one? -- Lawrence Lile ----- Original Message ----- From: "Kevin L. Pauba" To: Sent: Tuesday, May 01, 2001 10:05 PM Subject: Re: [PIC]: Project Idea :- Water Mixer Controller(Temperature) > What about fluidics? > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads