warren 783 research notes and 10141 wiki edits | Joined over 6 years ago | 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


134 questions asked

4156 comments posted

74 activities posted

13 activities attempted





Getting help in a coding project

by warren 20 days ago | 2 | 109 views | 5



Build a Raspberry Pi Zero aerial photo rig

by warren about 2 months ago | 5 | 151 views | 2




Set up a Raspberry Pi Camera with Pi Builder

by warren about 2 months ago | 10 | 156 views | 2









Writing a topic page on PublicLab.org

by warren 4 months ago | 2 | 65 views | 1


Assembling the Simple Air Sensor

by warren 4 months ago | 3 | 192 views | 3




Call for Summer of Code 2019 proposals!

by warren 5 months ago | 21 | 777 views | 3





Call for Summer of Code 2019 mentors!

by warren 6 months ago | 28 | 326 views | 5



Brainstorming for Summer of Code 2019

by warren 7 months ago | 71 | 903 views | 11


Report: 2019 Software Contributors Survey

by liz 3 months ago | 5 | 185 views | 5

Public Lab has received support for students to work on Public Lab software projects via [Google'...

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Software Community Growth through "first-timers-only" issues

by gauravano 4 months ago | 15 | 760 views | 7

first-timers-only issues are those which are written in a very engaging, welcoming way, far d...

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1. Setting up the Raspberry Pi Camera for Wireless Streaming

by partsandcrafts over 1 year ago | 10 | 3,057 views | 2

The Raspberry Pi Zero is an ama...

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Call for Outreachy 2019 proposals!

by gauravano 4 months ago | 18 | 256 views | 5

With support from the DIAL Open Source Center, we're again part of ...

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Microscope Webcam Conversion

by Bronwen about 1 year ago | 11 | 1,057 views | 2

<iframe width="560" height="315" src="https://www.youtube.com/embed/pt-9qPCBbQE" frameborder="0" ...

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Assembling the Raspberry Pi Microscope

by Bronwen 8 months ago | 7 | 255 views | 3

These are instructions for assembling the Raspberry Pi version of the microscope. These are posti...

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Introducing Pi Builder

by icarito 9 months ago | 4 | 664 views | 6

The Public Lab Kits Initiative uses Raspberry Pi cameras more and more, an...

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Notes from Tuesday’s frac sand call

by stevie 10 months ago | 6 | 212 views | 2

On Tuesday, September 11th, we held an open call in follow up to [previous discussions](https://p...

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Community Microscope-- THANK YOU

by Bronwen about 1 year ago | 1 | 432 views | 1

Thanks to the 357 supporters of our recent Kickstarter campaign, the Community Microscope will so...

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Community Microscope Assembly Instructions

by Bronwen about 1 year ago | 7 | 615 views | 4

<iframe src="https://www.youtube.com/embed/BvAkvtV-Zog" allowfullscreen="" width="560" height="31...

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Overview: Hackteria Remix: Building a Basic Microscope with Raspberry Pi

by partsandcrafts over 1 year ago | 14 | 4,309 views | 8

A microscope at its core consists of 4 things being held in place in relationship to each other...

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Bay Area Maker Faire!

by stevie about 1 year ago | 0 | 463 views | 1

Public Lab will be hosting a community science space at the San Francisco Maker Faire this coming...

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Report: Particle Visualization Event

by stevie over 1 year ago | 0 | 292 views | 3

Testimonial: A farmer in Hixton Wisconsin stood up in front of the group and began to tell hi...

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4. Lighting Your Sample

by partsandcrafts over 1 year ago | 2 | 321 views | 1

Lighting is conceptually relatively straightforward but extremely important for microscopy. We ...

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2. Attaching Your Raspberry Pi Camera to a Microscope Objective Lens

by partsandcrafts over 1 year ago | 13 | 3,648 views | 8

For a full overview of this project, go to [Raspberry Pi Microscope Build](https://docs.google....

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6. Looking at Dust (and other things)

by partsandcrafts over 1 year ago | 2 | 394 views | 3

NOTE: This is the least-well-developed part of the process and is a complicated enough project t...

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5. Testing and Calibrating Your Microscope

by partsandcrafts over 1 year ago | 0 | 698 views | 2

Our goal is to look at dust particles and attempt to identify them by size and shape. In order ...

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6. Looking at Dust (and other things)

by partsandcrafts over 1 year ago | 0 | 6 views | 0

This is the least-well-developed part of the process and is a complicated enough project that i...

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3. Building a Basic Microscope Stage

by partsandcrafts over 1 year ago | 3 | 592 views | 3

The microscope stage holds the optics, the sensor, and the sample together in a fixed geometric...

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Quick Build: Basic Microscope Kit with Raspberry Pi

by partsandcrafts over 1 year ago | 15 | 875 views | 1

Quick build instructions for [Hackteria Remix Raspberry Pi Microscope](https://publiclab.org/note...

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Water Quality Regulations, Testing Methods, Health Risks & Advocacy

by gilbert over 1 year ago | 7 | 493 views | 0

![](https://lh6.googleusercontent.com/HfUlIUzOTPmJWnFZkKyj6sNxwBPjdNSzigqlre700SYxvKo3BLAoQ83BdBi...

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Making a Hackteria stage

by partsandcrafts over 1 year ago | 4 | 523 views | 4

We want to determine whether the Hackteria scope can be used as a cheap, affordable alternative...

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Introducing Image Sequencer: a pure JavaScript non-destructive image processing library for Node, browser and command line

by ccpandhare over 1 year ago | 0 | 599 views | 3

_This past summer, myself, Chinmay led a project (mentored by Jeff) as part of Google Summer of C...

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Practicing a PM hotspot survey in New Auburn, WI

by mathew about 2 years ago | 6 | 476 views | 2

Attempting a Hotspot survey in New Auburn, WI with: @Stevie, @Gretchen, @Warren, @marlokeno, Jonn...

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Can't access pi camera in Spectral Workbench

lukemcpheters asked about 9 days ago

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What is the best way to measure areas of land from aerial mapping photos?

molangmuir10 asked about 16 days ago

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How could we design a group activity around siting air sensors?

warren asked about 23 days ago

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What do I do next, after using a low-cost or DIY air sensor?

warren asked about 23 days ago

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What do I do with microplastics after being collected?

warren asked about 23 days ago

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As per my ndvi output like this How can we calculate endvi or ndvi image ?

it13 asked about 25 days ago

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How many regular ~1 foot balloons does it take to lift a camera?

warren asked about 27 days ago

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How do we improve WiFi signal to a Raspberry Pi while in the air?

warren asked about about 2 months ago

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How can I download pi-builder SD card image with the WIFI network for camera access, Infragram and Image Sequencer?

molangmuir10 asked about about 2 months ago

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How do I identify the base polymers in an unknown plastic for recycling?

profpearce asked about about 2 months ago

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AWB_Gains for PiNoIRCamera V2 (Red Filter)

kauemv2 asked about about 2 months ago

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commented on May 27, 2019 2

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Can you help us with calibrating our spectrometer?

KristinaTamara asked about about 2 months ago

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commented on May 28, 2019 1

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Split DVD – which part to use for spectrometer

Nelari asked about about 2 months ago

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What happens to the simple air sensor when the battery pack runs low?

stevie asked about about 2 months ago

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ID and Password Request after Image Load

joquendo asked about 2 months ago

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Can i make a microplastic filter by just putting a nylon over the drain of my washing machine?

hikinghack asked about 2 months ago

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What size cuvettes are used for the lego spectrometer?

joquendo asked about 2 months ago

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Can you give me mesure for spectrum? Thank you.

janajockovic47 asked about 2 months ago

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Can someone clarify the colors on the simple air sensor? (turning white when plugged in)

stevie asked about 3 months ago

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Brainstorm on ways to use colored light to show sensor readings

warren asked about 3 months ago

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View these maps at MapKnitter.org »

Title Creation date Image

Comments

Comment Last activity Moderation
"OK, we just did the GitUp 1 -- https://jywarren.github.io/fisheyegl/example/#a=0.989&b=0.98&Fx=0.05&Fy=0.14&scale=1.036&x=1.00..." | Read more » about 21 hours ago
"Hi, sorry I missed this one too, but glad it worked! I've usually seen it take about five minutes so I was surprised to hear 30m. But also, we copi..." | Read more » 1 day ago
"Hi! Ok not sure what's happening but it's some issue with the camera software we chose. I'll try to take a look later today but the easiest thing a..." | Read more » 1 day ago
"Hi @icode365, this is great! Would you like to upload a few screenshots of these features for people to see? Thanks!!!! Community toolbox is so gre..." | Read more » 1 day ago
"Hi, i think your message somehow got deleted? But i got it by email. Actually the Pi camera doesn't connect to a computer by USB as a webcam in ge..." | Read more » 6 days ago
"Hi @molangmuir10 - thanks for all this, we're addressing some immediately, while other suggestions we are incorporating into our planning for futur..." | Read more » 7 days ago
"Hi Sairam- these videos are really helpful, thank you so much. Do you think you could try embedding them into your post? I didn't see an "embed" o..." | Read more » 7 days ago
"Hi! It's most likely your camera ribbon cable has become unseated somehow. It could be the longer ribbon or the tiny one on the camera board itself..." | Read more » 8 days ago
"Hi, thanks for posting your question. There are some answers here: https://publiclab.org/questions/cedarlodge/02-27-2018/uploading-images-from-rasp..." | Read more » 9 days ago
"No prob, it's percentage of max light that the camera sensor registers, so for absolute intensity calibration you'll need to use some reference lig..." | Read more » 11 days ago
"Hi! Thanks so much! I'm making a special tag for #community-atlas-ui for this and @molangmuir10's UI input posts. Also, I just made these issues ba..." | Read more » 12 days ago
"Hi all! i was thinking about this in the context of MapKnitter -- i think we have a way to calculate area of a polygon, so for example a single ima..." | Read more » 15 days ago
"Hi, @lekhidugtal - would you mind adding some screenshots? This'll be really nice to update people! Thank you!!! " | Read more » 19 days ago
"Re: "As you know, we're moving in the opposite direction" For sure, and I think we're on the same page on the need for lower cost monitoring. One ..." | Read more » 19 days ago
" " | Read more » 19 days ago
"Ok so I found this new product category for fans and carbon filters that's pretty cheap, and they're intended for hydroponics. VIVOSUN 4 Inch 203 ..." | Read more » 19 days ago
"I'm going to order a couple of these fans to test this out: $11 https://www.amazon.com/dp/B07RT95Z1Y/ " | Read more » 20 days ago
"Yes, and the aromatic baby powder is nice because you can smell it. Great idea. We're going to try prototyping this activity soon. With 3+ sensors,..." | Read more » 20 days ago
"Oh awesome! " | Read more » 20 days ago
"Oh sorry! I misunderstood! Here, i've added that too now, but note that I believe I just found a standard m12 on thingiverse and resized it. So the..." | Read more » 20 days ago
"Cool - just quick response to limitations, you can also run the gem locally with fewer restrictions, i believe: https://github.com/publiclab/mapkni..." | Read more » 20 days ago
"It's this one! https://github.com/publiclab/community-microscope/blob/master/lens-adapter.stl " | Read more » 21 days ago
"Oh gosh, well it's not super nice, and i think we may literally just have crudely stretched them to make gcode, but, the original is here: https://..." | Read more » 21 days ago
"This is cool! You're working on an Image Sequencer module for this, right? This will be so cool to be able to use in the simple interface at https:..." | Read more » 21 days ago































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