Tessel 2 is a development platform you can embed in a product. Build fast with Node.js/io.js, then optimize the hardware and build thousands.
The hackable-devices project is coming from the willingness to make available to hackers and makers materials that correspond to them. Much more than an online shop, hackable-devices is a platform for technical exchanges around hardware and devices you can manage, modify, fork or patch.
Hackable-devices aims to introduce you to open objects, it's up to you to make the best out of it.
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments.