warren 758 research notes and 9888 wiki edits | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for Public Lab, Jeffrey Warren designs mapping and community science tools and professionally flies balloons and kites. He leads the coding community at Public Lab, and has developed the vector-mapping framework Cartagen and grassroots mapping tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He is on the board of of the Open Source Hardware Association and served from 2015-17 as Vice President, is on the board (since 2014) 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.

Photo by ChristopherVillafuerte.com CC BY-NC-SA 4.0


122 questions asked

292 answers posted

68 activities posted

11 activities attempted


Joined about 6 years ago


DIY Formaldehyde Test Photo Card

by warren almost 4 years ago | 38 | 3,059 | 4





Tutorial video: Installing MapKnitter 2

by warren about 4 years ago | 0 | 1,779 | 1


Announcing MapKnitter 2.0

by warren about 4 years ago | 1 | 10,966 | 4


MapKnitter 2: Test Edition

by warren about 4 years ago | 0 | 2,089 | 1


Planning for Spectral Workbench 2.0

by warren about 4 years ago | 25 | 5,926 | 4


2015 Web Working Group report

by warren about 4 years ago | 0 | 1,990 | 1


Dreaming of sensitive friends

by warren over 4 years ago | 1 | 1,820 | 5


Table for choosing monitoring tools

by warren over 4 years ago | 0 | 1,565 | 4


CFL detection by contrast, for auto-calibration

by warren over 4 years ago | 0 | 2,215 | 0



Quantifying reflector brightness assistance

by warren over 4 years ago | 1 | 1,690 | 1




Coqui draft board design on Upverter

by warren over 4 years ago | 8 | 1,933 | 1


Webcam brightness testing for Oil Testing Kit

by warren over 4 years ago | 7 | 1,663 | 2


Odyssey magazine piece on Balloon Mapping

by warren over 4 years ago | 1 | 2,772 | 3




Increasing brightness of fluorescence spectra

by warren over 4 years ago | 7 | 2,549 | 0




Ambient/Light Bulb Testing

idev247 asked about over 2 years ago

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answered on Dec 06, 2016 1

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

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warren asked about over 2 years ago

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answered on Dec 05, 2016 0

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Spectral Workbench recording time?

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dhale2 asked about over 2 years ago

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answered on Dec 01, 2016 0

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Calibration of spectra fails

Paul_P asked about over 2 years ago

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answered on Nov 29, 2016 0

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Why copy calibration does not apply?

aelobo asked about over 2 years ago

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Intensity for spectra too low?

chuynh451 asked about over 2 years ago

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Is there an iPhone app for foldable spectrometer?

CanfieldC asked about over 2 years ago

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answered on Oct 28, 2016 0

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Can you share a link to project documentation?

vwls asked about over 2 years ago

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Error on calibrating uploaded spectrum

sarahcm asked about over 2 years ago

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Can anyone help me troubleshoot my NDVI imagery?

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abdul asked about over 2 years ago

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answered on Oct 22, 2016 1

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lightweight air quality sensors for a weather balloon

glenc asked about over 2 years ago

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answered on Oct 12, 2016 0

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What are important aspects to consider about replication on the website and in the community?

liz asked about over 2 years ago

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answered on Sep 29, 2016 1

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

warren asked about over 2 years ago

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answered on Sep 29, 2016 1

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answered on Jun 12, 2018 0

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View these maps at MapKnitter.org »

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