Ok, after spending almost a month doing many things not related to Raspberry Pi and home automation, I wish to show one of the latest projects about RPi: RaPiRo (contraction of Raspberry Pi Robot).
This is a really nice small robot that can be 3d printed at home without too much trouble (if you wish you can also buy the full kit, but it will cost you much more).
By printing the shell and using many parts I had at home, I got this nice item at a really low cost.
But you may ask what this robot has to do with home automation.... Well, let's se how it could be used.