Building a Home Security System with BeagleBone, by Bill Pretty, is an excellent collection of DIY projects. He unmasks common home security techniques in a clear and concise manner for hobbyists. There are several fun and practical projects that make you feel a bit like a super-spy as you build up a system of motion, infrared, and acoustic sensors.
In this book, you will learn how various sensors can protect doors, windows, and other entry-ways and even how to protect against attacks like wire-cutting. There are plenty of pictures in various stages of the project as well as schematic and Fritzing diagrams. The system described is complete and modular. There are three Printed Circuit Boards (PCBs) designs which are fully presented and can be extended to accommodate additional sensors in the network.
I especially liked the suggestion of remote monitoring and control to the security system. With a few external packages, Bill shows how to configure remote access to the system and provides examples on basic system hardening. In addition to his recommendations, you will want to add SSL to your BeagleBone server to protect the confidentiality of your traffic if you use a web-based interface.
This book is not meant to replace a nuclear missile security system and Bill is very upfront and honest about the capabilities of the design. If you are looking for a moderate to advanced series of projects that will put your BeagleBone to good use, this is a great book. Although, be warned, once you start tinkering with security systems, your paranoia levels start to rise!
The book is available by Packt Publishing.