In the past few months, we have covered plenty of Raspberry Pi and Arduino projects for smart homes. Want to build your own smart security camera? The SPI-BOX Raspberry Pi 2 Security Camera Kit has you covered. It comes with a protective case with mounting points for PIR and Raspberry Pi camera module. You also get a 8GB microSD card with Python scripts to configure your camera.
The camera will be able to capture photos on motion and send them to your e-mail. This kit is available for under $20 at this time.