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warren 6908 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.


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Web Working Group Monthly Recap 6: August 2015

by warren over 1 year ago | 0 | 1,417 | 1

A big month, but almost entirely for Spectral Workbench -- skip to the bottom to see those change...

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Public Lab Boston/Somerville coding meetup @ Parts & Crafts

by warren over 1 year ago | 3 | 2,694 | 2

Hi, all - next week, we'll be hosting a meetup at Parts & Crafts for folks interested in Public L...

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Preview of new Spectrums and Sets pages on Spectral Workbench

by warren almost 2 years ago | 0 | 1,242 | 1

Hi, all - I just deployed preview versions of the new Spectral Workbench 2.0 Sets and Spectrums p...

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Prototyping simple paper connections

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

I'm thinking about easy to make and easy to manufacture paper linkages that require few materi...

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Wavelength range limiting in Spectral Workbench

by warren almost 2 years ago | 1 | 1,626 | 0

Just a quick announce -- after [the big revision of Spectral Workbench went live](/notes/warren/0...

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Web Working Group Monthly Recap 5: July 2015

by warren almost 2 years ago | 0 | 1,244 | 0

Hello again - a lot has happened since last month's Web Working Group recap, and mostly it's happ...

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Sneak preview of new Spectral Workbench sets display

by warren almost 2 years ago | 0 | 1,286 | 0

Check it out here: https://spectralworkbench.org/sets/show2/2446 And see the embed here: <i...

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Silhouette Cameo desktop paper cutter for prototyping

by warren almost 2 years ago | 4 | 3,614 | 2

I've been wanting to do more laser cutting to prototype things like the [Oil Testing Kit](/wik...

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Testing the Oil Testing Kit: identifying a "somewhat unknown" sample

by warren almost 2 years ago | 4 | 2,428 | 2

I finally made time to test @mathew's [prototype Oil Testing Kit attachment](/notes/mathew/04-07-...

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

by warren almost 2 years ago | 2 | 1,361 | 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 almost 2 years 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 almost 2 years ago | 17 | 3,503 | 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 | 1,350 | 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 about 2 years ago | 14 | 2,418 | 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 about 2 years ago | 7 | 2,479 | 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 about 2 years ago | 0 | 2,092 | 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 about 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 about 2 years ago | 38 | 2,934 | 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 | 3,289 | 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 | 2,035 | 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 over 2 years ago | 11 | 2,028 | 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 over 2 years ago | 0 | 1,729 | 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 over 2 years ago | 1 | 10,098 | 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 over 2 years ago | 0 | 2,042 | 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 over 2 years ago | 24 | 5,854 | 5

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

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2015 Web Working Group report

by warren over 2 years ago | 0 | 1,881 | 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 | 1,748 | 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 | 1,521 | 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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How can real-time camera monitoring be set up?

cherylh asked about 15 days ago

Answers by warren

What are the health effects related to fine particles of calcium carbonate?

Accepted

stevie asked about 19 days ago

Answers by warren

answered on May 12, 2017 0

answered on May 12, 2017 1

answered on May 16, 2017 0

answered on May 22, 2017 1

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Decibel meters for iPhones?

Accepted

warren asked about about 1 month ago

Answers by warren

Is this government security warning on NOAA new?

marlokeno asked about 2 months ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 3 months ago

Answers by warren

answered on Mar 14, 2017 0

answered on Mar 14, 2017 0

answered on Apr 10, 2017 0

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JDEPC-OV05 camera intelligent exposure

tim_spec asked about 3 months ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about 4 months ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 4 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 4 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 5 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 5 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 6 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 6 months ago

Answers by warren

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

Accepted

warren asked about 6 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 6 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 6 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 6 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about 7 months ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about 7 months ago

Answers by warren

Can you share a link to project documentation?

vwls asked about 7 months ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about 7 months ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about 7 months ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about 8 months ago

Answers by warren

how to delete my spectra on Spectral Workbench

redleon asked about 8 months ago

Answers by warren


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

Accepted

warren asked about 8 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 9 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 10 months ago

Answers by warren

Question: How to rename a set?

AndrewJamesLaplante asked about 12 months ago

Answers by warren

Question: How do I get the calibration user interface?

PeterDH asked about about 1 year ago

Answers by warren

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

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