Tessel is a completely open source and community-driven IoT and robotics development platform. Build fast with Node.js, then optimize the hardware and build thousands.
Tessel encompasses development boards, hardware module add-ons, and the software that runs on them.
One common misconception is that Tessel is a company. We're not! We're just a collection of (unpaid) people who find it worthwhile to spend our time building towards the Tessel Project mission.
What's a Tessel?