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warren 6808 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 is Vice President of the board of the Open Source Hardware Association, on the board of alternative education program Parts and Crafts in Somerville MA, on the advisory board of Personal Democracy Media's WeGov 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.


Barnstars



Testing if light leaks through the walls of the PL Spectrometer v3

by warren over 1 year ago | 2 | 1,358 | 1

Following up on [a note on possible light going through the black cardstock walls of the v3 spect...

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Web Working Group Monthly Recap 4: June 2015

by warren over 1 year ago | 1 | 1,146 | 0

Hello all, happy 4th in advance, and here's our latest recap from PL's Web Working Group: F...

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Low floor, high ceiling for Public Lab research notes

by warren over 1 year ago | 17 | 3,494 | 3

Since the very beginning of Public Lab, we've been aware that we're experimenting with new modes ...

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Web Working Group Monthly Recap 3: May 2015

by warren almost 2 years ago | 0 | 1,346 | 0

Web Working Group Monthly Recap 3: May 2015 It's been a quieter month than usual for the Web W...

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Red filters in Infragram Webcams: a test

by warren almost 2 years ago | 14 | 2,412 | 1

This test is nowhere near as comprehensive as the big one we did at LEAFFEST a few years ago, but...

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Mobius cameras and smaller balloons

by warren almost 2 years ago | 7 | 2,467 | 11

I've been curious about how little helium it'd take to lift a Möbius camera as we've been using f...

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Web Working Group Monthly Recap 2: April 2015

by warren almost 2 years ago | 0 | 2,080 | 2

Welcome to the 2nd monthly Web Working Group report! I'm going to try to write faster this time; ...

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Web Working Group Monthly Recap

by warren almost 2 years ago | 0 | 1,506 | 3

We've begun tracking prioritization of all Public Lab coding in this Waffle.io board: https://...

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DIY Formaldehyde Test Photo Card

by warren almost 2 years ago | 38 | 2,927 | 8

@nshapiro and I are working on a card upon which you can place a colorimetric tube for detecting ...

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Public Lab talk at LibrePlanet 2015: Two Public Labs, and a call for developers

by warren about 2 years ago | 2 | 3,285 | 3

I gave a 10 minute lightning talk at LibrePlanet 2015 this past Saturday, where I discussed the i...

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Automatic placement of images in MapKnitter using GPS metadata

by warren about 2 years ago | 8 | 2,031 | 5

After a long wait, I've finally integrated @xvidun's feature of [automatically placing images](ht...

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Standardizing open source hardware publication practices with contributors.json

by warren about 2 years ago | 11 | 2,007 | 1

Alicia Gibb of OSHWA and I (I'm on their board) cooked up...

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Tutorial video: Installing MapKnitter 2

by warren about 2 years ago | 0 | 1,722 | 2

To learn to install MapKnitter yourself, [check out this video I just made](http://youtu.be/iGYGp...

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Announcing MapKnitter 2.0

by warren about 2 years ago | 1 | 9,945 | 7

Hello, mapmakers! The Web Working Group has just launched the final version of MapKnitter 2, i...

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MapKnitter 2: Test Edition

by warren about 2 years ago | 0 | 2,041 | 2

Hello, mapmakers! The Web Working Group has set up a testing version of MapKnitter 2, integrat...

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Planning for Spectral Workbench 2.0

by warren about 2 years ago | 24 | 5,852 | 5

Hello Spectral Workbench community! **Do you wish you could ...

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2015 Web Working Group report

by warren about 2 years ago | 0 | 1,869 | 2

This quarter, we moved all major services into Rackspace hosting, taking full advantage of Pub...

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Dreaming of sensitive friends

by warren over 2 years ago | 1 | 1,742 | 6

I took these portraits in a session at the open water workshop at Propeller, in New Orleans, toni...

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Table for choosing monitoring tools

by warren over 2 years ago | 0 | 1,520 | 5

I spoke with Carl from the EPA at the Engadget Expand conference last Saturday, and we brainst...

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CFL detection by contrast, for auto-calibration

by warren over 2 years ago | 0 | 2,155 | 1

I was thinking we might be able to do a crude but very fast CFL detection by measuring the amo...

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Spectral Workbench previewing and clipping warnings

by warren over 2 years ago | 1 | 2,982 | 3

Just a quick update here - I added a webcam preview to the capture interface (see above) as well ...

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Quantifying reflector brightness assistance

by warren over 2 years ago | 1 | 1,643 | 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 2 years ago | 2 | 3,503 | 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 2 years ago | 2 | 3,150 | 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 2 years ago | 8 | 1,859 | 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 2 years ago | 7 | 1,612 | 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 2 years ago | 1 | 2,743 | 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 2 years ago | 7 | 5,547 | 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 2 years ago | 4 | 3,231 | 2

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

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Is this government security warning on NOAA new?

marlokeno asked about 13 days ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 15 days ago

Answers by warren

answered on Mar 14, 2017 0

answered on Mar 14, 2017 0

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JDEPC-OV05 camera intelligent exposure

tim_spec asked about about 1 month ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about about 1 month ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 2 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 2 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 3 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 3 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 4 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 4 months ago

Answers by warren

How do I make a video from a series of photos?

Accepted

warren asked about 4 months ago

Answers by warren

answered on Dec 05, 2016 0

answered on Dec 05, 2016 0

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Spectral Workbench recording time?

Accepted

dhale2 asked about 4 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 4 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 4 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about 5 months ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about 5 months ago

Answers by warren

Can you share a link to project documentation?

vwls asked about 5 months ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about 5 months ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about 5 months ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about 6 months ago

Answers by warren

how to delete my spectra on Spectral Workbench

redleon asked about 6 months ago

Answers by warren


How can I reduce ambient light inside the Desktop Spectrometry Starter Kit?

Accepted

warren asked about 6 months ago

Answers by warren

answered on Sep 20, 2016 0

answered on Sep 20, 2016 0

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What's the best way to archive/store a timelapse video?

warren asked about 6 months ago

Answers by warren

answered on Sep 16, 2016 0

answered on Dec 08, 2016 0

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Does the new Question feature work?

Accepted

warren asked about 7 months ago

Answers by warren

Question: How to rename a set?

AndrewJamesLaplante asked about 10 months ago

Answers by warren

Question: How do I get the calibration user interface?

PeterDH asked about 11 months ago

Answers by warren

View these maps <a href='//mapknitter.org/profile/warren'>at MapKnitter.org &raquo;</a>

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