This simple device, paired with some creating code will let you become your own home security monitoring service. It’s called the PhantomLink and [Adam] started the project as a commercial venture. He recently decided to go open source with the hardware and will soon be posting a guide on how to program your own web interface too.

We just looked in on a project which takes control of a security panel using an Arduino. The PhantomLink is focused on not just reusing the input hardware, but monitoring the whole system. It sounds like several different protocols are supported.

The DB9 jack is intended for use with an adapter you can wire yourself. Basically just tap into the terminal block on the alarm controller for your house, then route those connections to the proper pins. A PIC 12F683 monitors the alarm system, pushing data via the WiFi module mounted on the board. With that web connection you can do anything you want by catching and formatting the data.