Someone is watching you

Houses are going hi-tech like never before. See how one man easily -- and affordably -- uses sensors to monitor and control almost every aspect of his home. His house even has its own Twitter account, tweeting him updates throughout the day.

From refrigerators to freight trains, CNBC's "Rise of the Machines" shows you how a new generation of connected machines can now speak to us, and each other. "Rise of the Machines" premieres Wednesday, Sept. 18 at 9 pm ET/PT.