RSS feed for warren


warren 7612 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, 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


71 questions asked

148 answers posted

2530 comments posted



Sampling extension for smartphone specs

by warren almost 4 years ago | 8 | 2,206 | 2

Mathew Lippincott and I have been talking about the [Oil Sampling Kit](/notes/...

Read more


Public Lab Community Newsletter February 7, 2014

by warren almost 4 years ago | 0 | 1,171 | 0

Hello everyone -- your weekly dose of Public Labbery is here, with a full agenda for the next few...

Read more


Oil Testing Kit: draft materials list

by warren almost 4 years ago | 33 | 3,998 | 3

Update: Alpha kits are now available: http://store.publiclab.org/products/spectrometry-sampli...

Read more


Public Lab community newsletter 2.01.14

by warren almost 4 years ago | 0 | 1,310 | 0

Hello everyone! There are lots of upcoming events, including one tomorrow in Somerville, MA -...

Read more



Thermal flashlight Visualight shield

by warren almost 4 years ago | 25 | 3,972 | 0

In the comments of this post, we've been exploring how to make an expansion to the open source...

Read more


Reagent-based PAH, VOH, PCB testing kits for soil and water, with pricing

by warren almost 4 years ago | 0 | 4,301 | 0

We need established tests to compare our own tests to, even if the established tests are expensiv...

Read more


Announcing an ioby + Public Lab partnership

by warren almost 4 years ago | 0 | 1,865 | 0

Hello all -- we wanted to briefly announce a new initiative in partnership with ioby, a locally-f...

Read more


Infragram Live & Infragram webcams en route from factory

by warren almost 4 years ago | 0 | 3,635 | 2

Following up on [my post from a couple weeks ago](/notes/warren/12-28-2013/live-webcam-infragr...

Read more



Live webcam Infragramming, WebGL option

by warren almost 4 years ago | 0 | 2,575 | 0

Working from Piotr's great WebGL code (which uses you...

Read more


New beta capture interface for Spectral Workbench

by warren almost 4 years ago | 5 | 5,310 | 2

I've been working in my spare time on a new interface for capturing spectra, pictured above, whic...

Read more


Spectrometry Sample Extraction at the Parts & Crafts Toolshed-Raising

by warren almost 4 years ago | 0 | 4,749 | 2

I wanted to report back from last month's water quality meetup in Somerville, which was graciousl...

Read more


Public Lab community newsletter 12.10.13

by warren almost 4 years ago | 0 | 1,403 | 0

_(Above, DJUltis' MQI environmental recorder, posted last week. Read below to...

Read more



Poster on issues with PAH detection in fish

by warren almost 4 years ago | 2 | 4,078 | 0

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

Read more


Introducing the Public Lab Smartphone Spectrometer

by warren about 4 years ago | 4 | 6,702 | 0

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

Read more


Visualight board for Thermal Flashlights

by warren about 4 years ago | 6 | 6,594 | 1

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

Read more


Firefox/Firefox-Android support for Spectral Workbench!

by warren about 4 years ago | 0 | 1,687 | 0

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

Read more



Smartphone Spectrometer and Infragram Webcam photoshoot

by warren about 4 years ago | 1 | 4,335 | 0

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

Read more


Fluorescence of BP oil with UV laser: success!

by warren about 4 years ago | 15 | 5,815 | 4

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

Read more


Infragram Webcam testing update

by warren about 4 years ago | 1 | 1,938 | 0

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

Read more


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

by warren about 4 years ago | 2 | 11,812 | 4

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

Read more



Spectral Workbench Offline

by warren about 4 years ago | 2 | 3,759 | 0

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

Read more


Improvements to SpectralWorkbench.org and PublicLab.org

by warren about 4 years ago | 8 | 1,921 | 0

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

Read more


Absorption lines in flare spectra

by warren about 4 years ago | 0 | 2,778 | 0

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

Read more


Trying to detect emission lines in flare spectra from Chalmette

by warren about 4 years ago | 2 | 3,350 | 0

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

Read more



Stepped slit tests

by warren about 4 years ago | 4 | 2,541 | 2

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

Read more


Eclectis: a week of civic science in Amsterdam North

by warren about 4 years ago | 1 | 3,553 | 1

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

Read more


Presentation at Waag Society's Eclectis program

by warren about 4 years ago | 0 | 1,665 | 1

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

Read more


LEAFFEST Infragram camboard batch tests

by warren about 4 years ago | 5 | 134,797 | 2

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

Read more



Spectra of Sparkfun Multicolor LED kit

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

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

Read more


An overview of the PublicLab.org website

by warren about 4 years ago | 0 | 1,622 | 1

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

Read more


Training in odor identification?

Sara asked about 1 day ago

Answers by warren

Does the Beer Lambert law apply to the opacity of reagents?

Accepted

warren asked about 3 days ago

Answers by warren

answered on Nov 20, 2017 0

answered on Nov 20, 2017 0

Show all 2 answers »

Best PLab demo ideas for a large group?

pdhixenbaugh asked about 10 days ago

Answers by warren

Helium alternative

Accepted

mrw0116 asked about 13 days ago

Answers by warren

How do I assemble the mini-balloon kit?

asnow asked about 16 days ago

Answers by warren

What's happening at the 2017 Barnraising?

warren asked about 20 days ago

Answers by warren

How do I easily set up a Raspberry Pi SD card?

warren asked about 23 days ago

Answers by warren

What sessions would people like to have at the 2017 Barnraising?

warren asked about 28 days ago

Answers by warren

answered on Oct 27, 2017 2

answered on Oct 27, 2017 1

answered on Oct 27, 2017 1

answered on Oct 30, 2017 1

answered on Oct 30, 2017 2

answered on Oct 31, 2017 1

Show all 9 answers »

How do I access the wiki?

partsandcrafts asked about 28 days ago

Answers by warren

How to connect a creative cam notebook with a smartphone?

KushalKC asked about about 1 month ago

Answers by warren

Need your feedback on Tag pages

tommystyles asked about about 1 month ago

Answers by warren

answered on Nov 15, 2017 1

answered on Nov 15, 2017 0

Show all 2 answers »

How big is the filter in the infragram DIY filter pack?

Accepted

robotfarms asked about about 1 month ago

Answers by warren

Has anyone used a RasPi camera in a DIY microscope?

Accepted

bmela asked about about 1 month ago

Answers by warren

What are good sources of cheap bulk giant mylar balloons?

Accepted

warren asked about about 1 month ago

Answers by warren

Is there an offline version of Mapknitter?

Accepted

stevie asked about 2 months ago

Answers by warren

How big are silica particles, in microns?

Accepted

warren asked about 2 months ago

Answers by warren

What should we do at LEAFFEST?

cfastie asked about 2 months ago

Answers by warren

answered on Sep 19, 2017 2

answered on Sep 19, 2017 1

answered on Sep 19, 2017 2

Show all 9 answers »

How can I add credit for main photo on Wiki?

Accepted

Zengirl2 asked about 2 months ago

Answers by warren

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

Accepted

warren asked about 2 months ago

Answers by warren

answered on Sep 12, 2017 0

answered on Sep 13, 2017 0

answered on Sep 16, 2017 0

Show all 3 answers »

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

Accepted

warren asked about 3 months ago

Answers by warren

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

bsugar asked about 3 months ago

Answers by warren

answered on Sep 08, 2017 0

answered on Sep 08, 2017 0

Show all 2 answers »

How much do different oil pollution tests cost?

Accepted

warren asked about 3 months ago

Answers by warren

What does oil pollution mean for my health?

Accepted

warren asked about 3 months ago

Answers by warren

What could teenagers do to support Harvey response efforts?

Accepted

warren asked about 3 months ago

Answers by warren

How do I collect a sample for laboratory analysis?

Accepted

warren asked about 3 months ago

Answers by warren

How big are smoke particles, in microns?

Accepted

warren asked about 3 months ago

Answers by warren

Calibaration or switching scale?

jayjay70 asked about 3 months ago

Answers by warren

How To Make Time Lapse Spectrometer

Accepted

LightWaveResearch8000 asked about 4 months ago

Answers by warren


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

Accepted

warren asked about 5 months ago

Answers by warren

Assembly completed but the camera doesn't work.

Accepted

1987123 asked about 5 months ago

Answers by warren

Desktop Spectrometry Kit to arduino?

jjoll asked about 5 months ago

Answers by warren

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

marlokeno asked about 5 months ago

Answers by warren

Can anyone help with weather station recommendations?

Accepted

stevie asked about 5 months ago

Answers by warren

Cheap, lightweight GoPro alternatives for aerial mapping?

Accepted

warren asked about 6 months ago

Answers by warren

answered on Jun 12, 2017 0

answered on Jun 14, 2017 0

Show all 5 answers »

How can real-time camera monitoring be set up?

cherylh asked about 6 months ago

Answers by warren

answered on May 16, 2017 0

answered on Jun 19, 2017 0

Show all 4 answers »

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

Accepted

stevie asked about 7 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

Show all 7 answers »

Decibel meters for iPhones?

Accepted

warren asked about 7 months ago

Answers by warren

Is this government security warning on NOAA new?

marlokeno asked about 8 months ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 8 months ago

Answers by warren

answered on Mar 14, 2017 0

answered on Mar 14, 2017 0

answered on Apr 10, 2017 0

Show all 4 answers »

JDEPC-OV05 camera intelligent exposure

tim_spec asked about 9 months ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about 10 months ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 10 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 10 months ago

Answers by warren

GoPro Hero HD first version- Making full spectrum( Removing IR filter)

Accepted

suman asked about 10 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 11 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 11 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 11 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 12 months ago

Answers by warren

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

Accepted

warren asked about 12 months ago

Answers by warren

answered on Dec 05, 2016 0

answered on Dec 05, 2016 0

answered on Jul 23, 2017 0

Show all 5 answers »

Spectral Workbench recording time?

Accepted

dhale2 asked about 12 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 12 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 12 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about about 1 year ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about about 1 year ago

Answers by warren

Can you share a link to project documentation?

vwls asked about about 1 year ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about about 1 year ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about about 1 year ago

Answers by warren

How to process images using a mobius with an IR lens?

Accepted

miguel_rosas asked about about 1 year ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about about 1 year ago

Answers by warren

answered on Oct 12, 2016 0

answered on Jun 19, 2017 0

Show all 2 answers »

how to delete my spectra on Spectral Workbench

redleon asked about about 1 year ago

Answers by warren

Can I upgrade a DIY spectrometer with a Raspberry Pi camera?

warren asked about about 1 year 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

Show all 5 answers »

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

Show all 2 answers »

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 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 over 1 year ago

Answers by warren

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

Title Creation date Image