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 npm— 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 sensing to actuation to connecting with other devices. 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 Start User GuideDocumentationGithubForum