[Mike] is doing a little series that is about DIY smart homes. While these wont turn your house into a Hal 9000 (and hopefully wont try and kill you), they are fun and fairly easy to carry out. Parts 1 and 2 focus on the bathroom, part 3+ is in the works. Lets go ahead and look at what is done already.
DIY smart home part 1 covers the kings throne. Through the use of an Arduino, ultrasonic rangefinder, Ethernet shield, and twitter account, whenever the toilet is used a counter goes up. Calculate that against your gallons per flush and you now have reasonable water tracker.
Diy smart home part 2 hits the shower with much of the same hardware and goals. Adding on to the Arduino software there is now a PIR sensor and another twitter account. Basing knowledge from a Lady Ada tutorial on PIR sensors, the additional Arduino code slides into place and some loose ends from part one are cleaned up.
We cant wait to see what is in store for the future and wish [Mike] the best of luck.