🎈 Public Lab: 'cernohl' by warren

Bio

The creator of [GrassrootsMapping.org](http://grassrootsmapping.org) and one of seven co-founders of Public Lab, Jeffrey Warren designs mapping and community science tools and professionally flies balloons and kites. He leads the coding community at Public Lab, and has developed [the vector-mapping framework Cartagen](http://cartagen.org) and [grassroots mapping tool MapKnitter](http://mapknitter.org), as well as open spectral database and toolkit [Spectral Workbench](http://spectralworkbench.org).

He served on the board of of the [Open Source Hardware Association](http://www.oshwa.org) for three terms from 2014-2020, and is an advocate of open source software, hardware, and data. He co-founded Vestal Design, a graphic/interaction design firm in 2004, and directed the Cut&Paste Labs project, a year-long series of workshops on open source tools and web design in 2006-7 with Lima designer Diego Rotalde.

Jeff holds an MS from MIT and a BA in Architecture from Yale University, and spent much of that time working with artist/technologist Natalie Jeremijenko, building robotic dogs and stuff. To find out more, visit Unterbahn.com.

* https://github.com/jywarren
* http://unterbahn.com
* http://unterbahn.com/thesis/
* http://instagram.com/unterbahn

Photo by [ChristopherVillafuerte.com](https://www.flickr.com/photos/open_hardware_summit/37122683523/) CC BY-NC-SA 4.0

By signing up, you agree to the Code of Conduct, which applies to all online and in-person spaces managed by the Public Lab community and non-profit. You also agree to our Privacy Policy.

As an open source community, we believe in open licensing of content so that other members of the community can leverage your work legally -- with attribution, of course. By joining the Public Lab site, you agree to release the content you post here under a Creative Commons Attribution Sharealike license, and the hardware designs you post under the CERN Open Hardware License 1.1 (full text). This has the added benefit that others must share their improvements in turn with you.