Coin-Sized $20 Competitor To Raspberry Pi

Move Over Raspberry Pi, Here Is a $20, Coin-Sized, Open-Source Linux Computer

Looking for a small, cheap Linux-powered computer to put at the heart of your project? Is "coin-sized" small enough? Is $20 cheap enough?

Adrian Kingsley-Hughes | April 5, 2016

Looking for a small, cheap Linux-powered computer to put at the heart of your project? Take a look at the VoCore. This is a small, low-cost, totally open-source (both the hardware and software) computer that's ideal for projects such as IoT or building your own custom router.
Don't think that for $20 you're getting a poor-quality bit of kit. You're not. The VoCore features a 360MHz MIPS CPU, 32MB of RAM, 8MB of flash memory, and comes ready equipped with header pins for sound, USB 2.0, Ethernet, and even Wi-Fi.

Source: http://vocore.io/

Enlarged view. Actual size is one square inch. Source: http://vocore.io/store/index

<more at http://www.zdnet.com/article/20-dollar-coin-sized-open-source-linux-computer/; related links and articles: http://vocore.io/ (VoCore website) and http://hackaday.com/2014/05/24/vocore-the-tiny-internet-of-things-thing/ (Vocore, the tiny Internet of Things. May 24, 2014)>