Arduino, Intel Edison, and Raspberry Pi are all wonderful platforms to use to learn electronics. There are all kinds of fun projects you can try to learn new things along the way. Aleator777 has shared a guide that shows you how to build your own Autonomous Sentry Turret. It is a system capable of detecting unwanted intruders. It keeps them away with a barrage of soft foam darts.
You are going to need these parts to get started:
- Intel Edison with Arduino breakout
- Electric Nerf Gun
- PIR Sensor
- XT Connectors
- Adjustable Regulator
- and more
More information is available on Instuctables.com.