Tessel is a microcontroller that runs JavaScript.

It's Node-compatible and ships with Wifi built in. Use it to easily make physical devices that connect to the web.

Features:

• Tessel supports packages from — that's HTTP, Twitter, web server, color, and async support right out of the box.
• Tessel runs JavaScript—no server necessary. Just like web or mobile development, use your own IDE and libraries to program physical applications.
• Tessel supports modules that add new capabilities to the board. It's literally plug, push, and play.
• Interact with the physical world from  to  to . Combine multiple modules for unique experiences. Each module has a first-party open source library on npm, with instructions and tutorials available online.

Specification:

• 180mhz ARM Cortex-M3 LPC1830
• 32mb SDRAM
• 32mb Flash
• TI CC3000 WiFi radio
• 20-pin GPIO bank for general prototyping
• Micro USB or battery power