Check out the electronics projects by Nicholas Skinner. Most of them are related to home automation. Here is the list:
* Building A Web Accessible Heating / Hot Water Programmer
* Doorbell Control Notification Hardware
* Active RFID For presence Detection
* Active RFID Tracking System with Mesh Networking
Wire-to-board interconnection options from Sullins feature a wide range of sizes and applications
MCC’s TVS series high-power suppressors protect sensitive components from voltage spikes and transients
Evaluation boards that streamline evaluating circuit protection on RS-485 serial device ports