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warren 7273 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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Poster on issues with PAH detection in fish

by warren almost 4 years ago | 2 | 4,066 | 0

This poster (NOT released under an open license; merely published here with the permission of co-...

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Introducing the Public Lab Smartphone Spectrometer

by warren almost 4 years ago | 4 | 6,668 | 0

At long last, we've started shipping the Smartphone Spectrometer, formerly called the "Backpack S...

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Visualight board for Thermal Flashlights

by warren almost 4 years ago | 6 | 6,572 | 1

Leif Percifield's Visualight is an affordable Arduino-compatible...

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Firefox/Firefox-Android support for Spectral Workbench!

by warren almost 4 years ago | 0 | 1,684 | 0

As seen in the above screenshot, Spectral Workbench (finally) also works on Firefox and Firefox f...

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Smartphone Spectrometer and Infragram Webcam photoshoot

by warren almost 4 years ago | 1 | 4,297 | 0

I just got the final Infragram Webcam prototype from the factory, and wanted to share some nice p...

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Fluorescence of BP oil with UV laser: success!

by warren almost 4 years ago | 15 | 5,792 | 4

Scott Eustis and I and others have made [a number](/notes/warren/05-14-2013/laser-oil-fluoresc...

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Infragram Webcam testing update

by warren almost 4 years ago | 1 | 1,933 | 0

This has been taking a while since they are shipping us samples as they attempt the webcam conver...

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Raspberry Pi Infrared Camera ships with Public Lab's Infragram filter

by warren almost 4 years ago | 2 | 11,718 | 4

Raspberry Pi just launched their Pi NoIR - a filter-less camera for the Raspberry Pi low-cost com...

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Spectral Workbench Offline

by warren almost 4 years ago | 2 | 3,748 | 0

I spoke with some Firefox OS folks at Mozfest this weekend about the "offline manifest" system in...

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Improvements to SpectralWorkbench.org and PublicLab.org

by warren almost 4 years ago | 8 | 1,913 | 0

Quick roundup of new features and improvements: Changes to SpectralWorkbench have been vari...

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Absorption lines in flare spectra

by warren almost 4 years ago | 0 | 2,770 | 0

There seem to be some distinct lines missing in the [Chalmette flare spectra](https://spectral...

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Trying to detect emission lines in flare spectra from Chalmette

by warren almost 4 years ago | 2 | 3,335 | 0

[![Screen_Shot_2013-10-09_at_1.57.17_PM.png](https://i.publiclab.org/system/images/photos/000/001...

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Stepped slit tests

by warren almost 4 years ago | 4 | 2,533 | 2

Following up on Mathew Lippincott's [printed slit tests](/notes/mathew/09-2...

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Eclectis: a week of civic science in Amsterdam North

by warren almost 4 years ago | 1 | 3,541 | 1

Last week I was invited along with Cindy Regalado by the [Waag Society]...

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Presentation at Waag Society's Eclectis program

by warren about 4 years ago | 0 | 1,662 | 1

I'm giving a talk at the Waag Society in Amsterdam today, about Public Lab. Che...

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LEAFFEST Infragram camboard batch tests

by warren about 4 years ago | 5 | 134,787 | 2

Above is a compilation of all [the camera board tests](/notes/warren/09-08-2013/infragram-webcam-...

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Spectra of Sparkfun Multicolor LED kit

by warren about 4 years ago | 2 | 2,187 | 0

<iframe width='100%' height='200px' border='0' src='https://spectralworkbench.org/sets/embed/566'...

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An overview of the PublicLab.org website

by warren about 4 years ago | 0 | 1,615 | 1

<iframe width="640" height="480" src="//www.youtube.com/embed/gf804ucVYQ0" frameborder="0" allowf...

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Infragram webcam test raw images

by warren about 4 years ago | 2 | 130,555 | 2

At LEAFFEST 2013, we wanted to do a rigorous test of all the [webcams we've bee...

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Open Hardware Summit talk: Building communities one kit at a time

by warren about 4 years ago | 1 | 4,162 | 2

I gave a talk today at the Open Hardware Summit about how to strengthen ...

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Smartphone spectrometer instructions

by warren about 4 years ago | 0 | 2,299 | 0

For the Kickstarter Smartphone Spectrometers, [Mathew](/profile/m...

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Public Lab Community Newsletter - August 30, 2013

by warren about 4 years ago | 0 | 1,867 | 0

(_Above, an aerial image taken at last year's [Extreme Citizen Science balloon mapping](http://uc...

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Huentek Infragram Webcam tests

by warren about 4 years ago | 0 | 2,193 | 0

Just got a batch of 4 webcams from the Korean company Huentek; Here's the HU203, and I'll post mo...

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Results from Aug 25, 2013 Tidmarsh Farms mapping

by warren about 4 years ago | 0 | 2,457 | 0

Glorianna Davenport and Gershon Dublon [hosted a mapping meetup](https://www.eventbrite.com/event...

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Infragrammar with HSV color model

by warren about 4 years ago | 17 | 6,079 | 1

A new idea that evolved [in this thread](https://github.com/Pioneer-Valley-Open-Science/infragram...

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Public Lab Community Newsletter - August 23, 2013

by warren about 4 years ago | 0 | 1,562 | 0

Happy Friday, Public Lab! Lots happening this week between updates on two Kickstarters, hundreds ...

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Public Lab sessions @ Mozfest, Oct 25-7 2013

by warren about 4 years ago | 1 | 1,755 | 0

Mozfest, or the Mozilla Festival, is an annual "future of the web" festiva...

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New boxes for balloon mapping kits

by warren about 4 years ago | 2 | 4,135 | 2

After an extended design process and a very long time actually getting these produced, we finally...

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Infragram webcam conversion test with I Zone cameras

by warren about 4 years ago | 3 | 4,180 | 0

Ongoing tests of candidates for the [Infragram Webcam](http://kickst...

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Smartphone spectrometer molded samples have arrived!

by warren about 4 years ago | 4 | 3,780 | 2

We are now making final plastics decisions and setting up the final run of 1000! Just wanted to s...

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Is there an offline version of Mapknitter?

stevie asked about 1 day ago

Answers by warren

What should we do at LEAFFEST?

cfastie asked about 3 days ago

Answers by warren

answered on Sep 19, 2017 1

answered on Sep 19, 2017 0

answered on Sep 19, 2017 0

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How can I add credit for main photo on Wiki?

Accepted

Zengirl2 asked about 4 days ago

Answers by warren

What are some sources of new aerial imagery of Harvey damages?

Accepted

warren asked about 9 days ago

Answers by warren

answered on Sep 12, 2017 0

answered on Sep 13, 2017 0

answered on Sep 16, 2017 0

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How do I join a volunteer Disaster Response Team for flooding?

Accepted

warren asked about 13 days ago

Answers by warren

What is the best way to formalize connecting needs with offers?

bsugar asked about 14 days ago

Answers by warren

answered on Sep 08, 2017 0

answered on Sep 08, 2017 0

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How much do different oil pollution tests cost?

Accepted

warren asked about 14 days ago

Answers by warren

What does oil pollution mean for my health?

Accepted

warren asked about 14 days ago

Answers by warren

What could teenagers do to support Harvey response efforts?

Accepted

warren asked about 14 days ago

Answers by warren

How do I collect a sample for laboratory analysis?

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warren asked about 14 days ago

Answers by warren

How big are smoke particles, in microns?

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warren asked about 22 days ago

Answers by warren

Calibaration or switching scale?

jayjay70 asked about 22 days ago

Answers by warren

Just tried to publish a Replication of the KnowFlow and fail ...

MadTinker asked about about 1 month ago

Answers by warren

answered on Aug 03, 2017 0

answered on Aug 03, 2017 1

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How To Make Time Lapse Spectrometer

LightWaveResearch8000 asked about 2 months ago

Answers by warren

How do I install a bootloader on a Riffle data logger?

Accepted

warren asked about 3 months ago

Answers by warren

Desktop Spectrometry Kit to arduino?

jjoll asked about 3 months ago

Answers by warren

How can we get rid of spam on the main PL page?

marlokeno asked about 3 months ago

Answers by warren

Can anyone help with weather station recommendations?

Accepted

stevie asked about 3 months ago

Answers by warren

Cheap, lightweight GoPro alternatives for aerial mapping?

Accepted

warren asked about 4 months ago

Answers by warren

answered on Jun 12, 2017 0

answered on Jun 14, 2017 0

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How can real-time camera monitoring be set up?

cherylh asked about 4 months ago

Answers by warren

answered on May 16, 2017 0

answered on Jun 19, 2017 0

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

Accepted

stevie asked about 4 months 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 5 months ago

Answers by warren

Is this government security warning on NOAA new?

marlokeno asked about 6 months ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 6 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 7 months ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about 8 months ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 8 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 8 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 9 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 9 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 9 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 10 months ago

Answers by warren

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

Accepted

warren asked about 10 months ago

Answers by warren

answered on Dec 05, 2016 0

answered on Dec 05, 2016 0

answered on Jul 23, 2017 0

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Spectral Workbench recording time?

Accepted

dhale2 asked about 10 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 10 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 10 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about 11 months ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about 11 months ago

Answers by warren

Can you share a link to project documentation?

vwls asked about 11 months ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about 11 months ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about 11 months ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about 11 months ago

Answers by warren

answered on Oct 12, 2016 0

answered on Jun 19, 2017 0

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how to delete my spectra on Spectral Workbench

redleon asked about 12 months ago

Answers by warren

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

Accepted

warren asked about about 1 year 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 about 1 year ago

Answers by warren

answered on Sep 16, 2016 0

answered on Dec 08, 2016 0

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Has anyone used a timelapse camera in stream monitoring?

stevie asked about about 1 year ago

Answers by warren

Question: What is the Open Source Community's Take the MIT License?

Accepted

nshapiro asked about about 1 year ago

Answers by warren

Does the new Question feature work?

Accepted

warren asked about about 1 year ago

Answers by warren

Question: Using a webcam with a image resolution of 1920x1020

seko asked about about 1 year ago

Answers by warren

Question: How to rename a set?

AndrewJamesLaplante asked about over 1 year ago

Answers by warren

Question: How do I get the calibration user interface?

PeterDH asked about over 1 year ago

Answers by warren

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

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