Raspberry Pi - The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
Orange Pi - It’s an open-source single-board computer. It can run Android 4.
Arduino - Build your own electronics
Odroid - The Odroid is a series of single-board computers and tablet computers created by Hardkernel Co.
codebender - The Largest Arduino Playground In The World. Create, share and run your code anywhere.
OLinuXino - Open Source Software and Open Source Hardware, low cost Linux Industrial grade single board...