I have recently bought a raspberry to add some more finctionalities (and more power than with arduino !) to my home.
The goal is to add video support in order to be abble to view what's happening when I'm away ... actualy I should say : "To experiment some funny things !" as viewing my home when I'm at work is not particulary usefyull, AMHA ...
I have resumed the way to install a camera on PI, wich is not the goal of this post, and how to capture the temperature of a DS18B20 chip connected to the Pi by using Mango.
I you want to see it, it's here : http://electrorun.blogspot.com/2013/06/monitor-raspberry-pi-with-mango.html