Turn your old phone into a home security camera you can watch from anywhere - CNET. We all have some old Smartphones lying around. In the past, I have turned these into WiFi media devices; but, today, I am repurposing some of them as web security cameras for the office. You can do this too. Just download the app from the PlayStore, (I like IPCam), and set it up anywhere. I keep mine connected to power via USB so that it won't run down. You can set motion detection and other stuff. Want to burglarize me? Go ahead. Make my day.