Follow warren

RSS feed for warren


Wiki pages recently contributed to

warren 4710 research notes and wiki edits | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for the Public Laboratory for Open Technology and Science, 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 a fellow at MIT's Center for Civic Media, on the board of the Open Source Hardware Association, 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 opensource 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


Infragram kite mapping at Fab10 Barcelona

by warren | 4 days ago | 10 | 148 views | 0

I held two workshops at Fab 10 (http://fab10.org) where we launched an Infragram Point & Shoo...

Read more »

near-infrared-camera kite-mapping barcelona spain


Spectrometer slit width thoughts

by warren | 8 days ago | 5 | 249 views | 0

What I want to do I'd like to propose a couple changes to the optical slit based on observations...

Read more »

spectrometer kits slit sensitivity


Oil testing spectrometry workshop at Fab 10

by warren | 8 days ago | 5 | 341 views | 1

I ran a small session on developing the oil test kit spectrometer yesterday in Barcelona (http://...

Read more »

spectrometer workshop fluorescence response:8973


Presentation at FAB10 in Barcelona

by warren | 10 days ago | 0 | 95 views | 0

I'm presenting today at FAB10 (http://fab10.org) and wanted to share my presentation! https://do...

Read more »

barcelona spain presentation fab10



Reimagining the data lifecycle

by warren | 11 days ago | 0 | 155 views | 0

This article, by Jeffrey Warren and Shannon Dosemagen was first published in the summer of 2011 i...

Read more »

gmf grassrootsmappingforum forum with:shannon


Idea for<$5 analog thermal fishing bob

by warren | about 1 month ago | 1 | 272 views | 3

Using 555 timers and no Arduino... Only red/blue LEDs!

Read more »

water-quality thermal-fishing-bob thermal


Public Lab community newsletter 5.23.14

by warren | about 1 month ago | 0 | 288 views | 0

Hello folks - the Northeast Barnraising is quickly approaching, and research discussions on our m...

Read more »


Viewing mica through a polarizer

by warren | about 1 month ago | 1 | 264 views | 0

Mathew Lippincott has been collecting and posting research on low-cost approaches to silica detec...

Read more »

dust smartphone silica particulate



Public Lab Community Newsletter 5.4.14

by warren | 2 months ago | 0 | 262 views | 0

Featured image: an Infragram-converted Mobius Action Cam false-color image, by Mathew Lippincott ...

Read more »


Public Lab trading cards

by warren | 3 months ago | 1 | 483 views | 5

For highlighting awesome enviro monitoring and other stories. Collect them all!

Read more »

organizers case-studies trading-cards


$0.75 lead testing color strips

by warren | 3 months ago | 4 | 450 views | 1

Ok -- how does this work and can we DIY this?

Read more »

soil kit lead strip


Infragram featured in April's issue of Wired

by warren | 3 months ago | 1 | 624 views | 3

Just got this at the newsstand -- pretty neat, if brief! Woohoo!

Read more »

media infragram wired



Mobius Action Cam Infragram tests

by warren | 3 months ago | 5 | 1,177 views | 0

What I want to do Based on an ongoing discussion about whether the Mobius Action Cam (a ~70 gram...

Read more »

near-infrared-camera ndvi infragram infragram-sandbox


Selenium detection methods & ideas on e-cigarette atomizers for DIY analysis

by warren | 3 months ago | 3 | 1,215 views | 2

This PDF has some great notes on all different approaches for measuring selenium in soil, water, ...

Read more »

spectrometer emission-spectroscopy flame-spectroscopy flame


Yellow smoke plume at Lawrence Point, Queens

by warren | 4 months ago | 7 | 591 views | 0

Yesterday, I was riding the Amtrak train past Lawrence Point in Queens, NY, and saw twin smokesta...

Read more »

new-york-city queens plume watchdog


Sampling extension for smartphone specs

by warren | 5 months ago | 8 | 849 views | 2

Mathew Lippincott and I have been talking about the Oil Sampling Kit and how to streamline it eve...

Read more »

spectrometer cuvettes sampling smartphone-spectrometer



Public Lab Community Newsletter February 7, 2014

by warren | 5 months ago | 0 | 447 views | 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 | 5 months ago | 20 | 1,175 views | 2

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

Read more »

oil-spill oil oil-spill-toolkit fluorescence


Public Lab community newsletter 2.01.14

by warren | 5 months ago | 0 | 540 views | 0

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

Read more »


Thermal flashlight Visualight shield

by warren | 6 months ago | 25 | 1,170 views | 0

What I want to do In the comments of this post, we've been exploring how to make an expansion to...

Read more »

thermal-photography thermal-flashlight visualight pcb



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

by warren | 6 months ago | 0 | 1,006 views | 0

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

Read more »

spectrometer field-testing soil testing


Announcing an ioby + Public Lab partnership

by warren | 6 months ago | 0 | 911 views | 0

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

Read more »

gulf-coast refinery crowdfunding flare


Infragram Live & Infragram webcams en route from factory

by warren | 6 months ago | 0 | 1,766 views | 1

Infragram Live Following up on my post from a couple weeks ago, we've refined and improved the I...

Read more »

near-infrared-camera kickstarter infragram response:9917


Live webcam Infragramming, WebGL option

by warren | 7 months ago | 0 | 1,167 views | 0

Working from Piotr's great WebGL code (which uses your GPU to accelerate Infragram calculations) ...

Read more »

near-infrared-camera infragram infragram-sandbox infragrammar



New beta capture interface for Spectral Workbench

by warren | 7 months ago | 5 | 2,206 views | 1

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

Read more »

spectrometer spectralworkbench


Spectrometry Sample Extraction at the Parts & Crafts Toolshed-Raising

by warren | 7 months ago | 0 | 1,910 views | 2

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

Read more »

spectrometer boston partsandcrafts oil


Public Lab community newsletter 12.10.13

by warren | 7 months ago | 0 | 759 views | 0

(Above, DJUltis' MQI environmental recorder, posted last week. Read below to learn more!) Apolog...

Read more »


Poster on issues with PAH detection in fish

by warren | 8 months ago | 0 | 1,309 views | 0

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

Read more »

spectrometer fish oil ultraviolet



Introducing the Public Lab Smartphone Spectrometer

by warren | 8 months ago | 2 | 2,574 views | 0

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

Read more »

spectrometer kickstarter smartphone-spectrometer


Visualight board for Thermal Flashlights

by warren | 8 months ago | 6 | 3,985 views | 1

What I want to do Leif Percifield's Visualight is an affordable Arduino-compatible USB-stick wit...

Read more »

thermal-photography arduino thermal-flashlight led