So you want to learn more about electronics? Building your own gadgets is one way to do it. The SPI-BOX Raspberry Pi 2 Security Camera Kit comes with everything you need to build your own motion activated security camera with a Raspberry Pi 2 and Raspberry Pi camera module. The SPi-Box microSD card comes with Python scripts to configure your security camera.
The camera captures images and sends them to your e-mail upon detecting motion. This kit is available for under $18 at this time.