I've been playing with Dallas one wire sensors etc for sometime as they are reasonably cheap. The end plan is to control the house heating system intelligently. Currently we have a standard two zone system with a boiler.
Sitting in the dining room is a thermal store which should have been installed last year but as it arrived too late, it will have to be done this spring. I also plan to install a woodburner with back boiler and solar panels. Mango is going to have to control the lot in and start to make assumptions, ie from the weather station I have, if its forcast sunny hold back on the boiler and use the solar panel.
So far I've got 20+ sensors working with Mango just monitoring the system (www.bacwak.net:8080) USER guest PWD guest . (Have a look but Please don't fiddle too much) it may be a bit slow I'm using and ADSL line on a Ultra Low power PC (36Watts)and its also a web server, security camera server and an email server.
Thats it for the moment, as i make changes I'll update this