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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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Web Working Group Monthly Recap 3: May 2015

by warren over 2 years ago | 0 | 1,371 | 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 over 2 years ago | 16 | 2,452 | 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 over 2 years ago | 7 | 2,520 | 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 over 2 years ago | 0 | 2,138 | 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 over 2 years ago | 0 | 1,510 | 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 over 2 years ago | 38 | 2,961 | 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 over 2 years ago | 2 | 3,297 | 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 over 2 years ago | 8 | 2,047 | 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 | 2,059 | 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 | 1,741 | 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 | 10,370 | 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 | 2,051 | 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 | 5,865 | 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 | 1,912 | 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 almost 3 years ago | 1 | 1,761 | 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 almost 3 years ago | 0 | 1,536 | 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 almost 3 years ago | 0 | 2,162 | 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 almost 3 years ago | 1 | 2,993 | 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 almost 3 years ago | 1 | 1,655 | 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 almost 3 years ago | 2 | 3,532 | 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 almost 3 years ago | 2 | 3,181 | 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 about 3 years ago | 8 | 1,877 | 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 about 3 years ago | 7 | 1,626 | 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 about 3 years ago | 1 | 2,755 | 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 about 3 years ago | 7 | 5,603 | 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 about 3 years ago | 4 | 3,265 | 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 about 3 years ago | 7 | 2,507 | 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 about 3 years ago | 13 | 4,139 | 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 about 3 years ago | 1 | 2,541 | 1

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

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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?

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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

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What does oil pollution mean for my health?

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warren asked about 14 days ago

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What could teenagers do to support Harvey response efforts?

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warren asked about 14 days ago

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How do I collect a sample for laboratory analysis?

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warren asked about 14 days ago

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How big are smoke particles, in microns?

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warren asked about 22 days ago

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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?

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stevie asked about 3 months ago

Answers by warren

Cheap, lightweight GoPro alternatives for aerial mapping?

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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

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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?

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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?

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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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