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warren 8187 research notes and wiki edits | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for Public Lab, Jeffrey Warren designs mapping and civic science tools and professionally flies balloons and kites. Notable software he has created include the vector-mapping framework Cartagen and orthorectification tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He served from 2015-17 as Vice President of the board of the Open Source Hardware Association, is on the board of alternative education program Parts and Crafts in Somerville MA, and 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.


104 questions asked

224 answers posted

54 activities posted

6 activities attempted


Joined about 7 years ago

Quantifying reflector brightness assistance

by warren over 3 years ago | 1 | 1,667 | 2

At the [New Orleans oil testing meetup](/notes/stevie/08-01-2014/recap-july-31-new-orleans-oil...

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Oil fluorescence scanning on an Ocean Optics spectrometer

by warren over 3 years ago | 2 | 3,560 | 1

At LEAFFEST 2014, Mary, Luisa, and others reproduced the kind of fluoresc...

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Better smoothing and equalizing graph height for comparison of oil spectra

by warren over 3 years ago | 2 | 3,203 | 2

Based on the difficulties @mathew highlighted in [his research note yesterday](/notes/mathew/0...

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Coqui draft board design on Upverter

by warren over 3 years ago | 8 | 1,902 | 1

Make a simple through-hole Printed Circuit Board for the Coqui <$5 water conduc...

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Webcam brightness testing for Oil Testing Kit

by warren over 3 years ago | 7 | 1,647 | 2

We've had trouble getting bright enough spectra in the Oil Testing Kit [with the SANM webcam t...

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Odyssey magazine piece on Balloon Mapping

by warren over 3 years ago | 1 | 2,765 | 3

Odyssey Magazine is a kids science magazine, and they ran a whole issue on remote sensing recentl...

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Ultra micro cuvette tests, UV LED and low-temperature fluorescence

by warren over 3 years ago | 7 | 5,667 | 0

Just posting a variety of small tests I've done over the past few days, based a bit on the lit...

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Continued literature review for the Oil Testing Kit

by warren over 3 years ago | 4 | 3,284 | 2

I've been reading and annotating a collection of formal research papers on fluorescence spectr...

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Increasing brightness of fluorescence spectra

by warren over 3 years ago | 7 | 2,520 | 0

We had some trouble at [the recent oil testing kit meetup in New Orleans](/notes/stevie/08-01-...

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Survey of different kinds of fluorescence spectrometry, optimizing intensity

by warren over 3 years ago | 13 | 4,168 | 1

Learning more about different types of fluorescence spectroscopy -- a common type for oil anal...

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Visible-range fluorescence fingerprinting of heating and motor oil

by warren over 3 years ago | 1 | 2,554 | 1

I forwarded this 1992 article, "Fingerprinting petroleum contamination using synchronous scanning...

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Canon SD4000IS as Infragram

by warren over 3 years ago | 9 | 1,970 | 1

We'd [struggled a year ago](/notes/warren/08-26-2013/results-from-aug-25-2013-tidmarsh-farms-m...

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Equalizing area of spectral graphs for comparison

by warren over 3 years ago | 0 | 1,671 | 2

During the development of testing techniques with spectrometers in the Public Lab community, w...

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Recent improvements to PublicLab.org

by warren over 3 years ago | 0 | 1,402 | 4

The past few months have been focused on intense coding, optimization, and feature refinement ...

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Infragram kite mapping at Fab10 Barcelona

by warren over 3 years ago | 12 | 2,345 | 0

I held two workshops at Fab 10 (http://fab10.org) where we launched an [Infragram](/wiki/infragra...

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Spectrometer slit width thoughts

by warren over 3 years ago | 5 | 3,689 | 0

I'd like to propose a couple changes to the optical slit based on observations. The slit is fa...

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Oil testing spectrometry workshop at Fab 10

by warren over 3 years ago | 5 | 3,527 | 1

I ran a small session on developing the oil test kit spectrometer yesterday in Barcelona (http://...

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Presentation at FAB10 in Barcelona

by warren over 3 years ago | 1 | 1,286 | 0

I'm presenting today at FAB10 (http://fab10.org) and wanted to share my presentation! https://...

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Reimagining the data lifecycle

by warren over 3 years ago | 0 | 1,518 | 0

This article, by Jeffrey Warren and <a href="/pr...

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Idea for<$5 analog thermal fishing bob

by warren over 3 years ago | 1 | 1,613 | 4

Using 555 timers and no Arduino... Only red/blue LEDs!

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Public Lab community newsletter 5.23.14

by warren almost 4 years ago | 0 | 1,290 | 0

Hello folks - the Northeast Barnraising is quickly approaching, and research discussions on our m...

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Viewing mica through a polarizer

by warren almost 4 years ago | 1 | 1,288 | 0

Mathew Lippincott has been [collecting and posting research on low-cost approa...

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Public Lab Community Newsletter 5.4.14

by warren almost 4 years ago | 1 | 1,107 | 0

_Featured image: an Infragram-converted [Mobius Action Cam](/notes/mathew/05-02-2014/announcing-t...

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Public Lab trading cards

by warren almost 4 years ago | 1 | 1,630 | 5

For highlighting awesome enviro monitoring and other stories. Collect them all! [![tmp_IMG_2...

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Does the new Question feature work?

Accepted

warren asked about over 1 year ago

Answers by warren

How to rename a set on Spectral Workbench?

Accepted

AndrewJamesLaplante asked about over 1 year ago

Answers by warren

Question: How do I get the calibration user interface?

Accepted

PeterDH asked about almost 2 years ago

Answers by warren

View these maps at MapKnitter.org »

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role:organizer skill:coding organizers place:somerville-ma organizer location:blurred place:somerville github:jywarren instagram:unterbahn group:education lat:41 lon:-71 wwg welcome