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Notes on activity:* by warren

Visualize live sensor data with p5js and an Arduino

by warren 10 days ago | 4 | 246 | 2

(This is a draft!) I made a simple p5js sketch (read below) to live sensor data off of an Arduino...

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Assembling the Public Lab Lego Spectrometer

by warren 2 months ago | 5 | 1,265 | 5

Follow these steps to assemble a Lego Spectrometer, for use with the Raspberry Pi...

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Embed a Q&A system on another website

by warren 2 months ago | 0 | 110 | 1

Our Q&A system is based at -- ...

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Help document how to connect different sensors to a data logger

by warren 2 months ago | 0 | 193 | 1

We have a range of data logger projects on the site, most of which are Ardu...

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Build a papercraft spectrometer for your phone -- version 2.0

by warren 3 months ago | 0 | 7,432 | 3

After a few years, we're returning to one of our oldest kits to update and improve it, building o...

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Make a narrow slit for a DIY spectrometer out of paper

by warren 3 months ago | 1 | 1,410 | 2

Spectrometers (see #spectrometry) require a narrow slit for light to pass through, so you can get...

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Use Git and GitHub to contribute and improve Public Lab software

by warren 3 months ago | 0 | 154 | 1

Public Lab software is written in many languages, and each project may have its own guidelines fo...

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Draft: Find the concentration of a liquid with a DIY spectrometer

by warren 3 months ago | 3 | 1,193 | 1

If you have a solution of unknown concentration -- for example, a water sample that's greenish or...

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Join DocCom -- the Barnraising 2017 documentation committee, and publish the Barnraiser!

by warren 4 months ago | 0 | 135 | 1

Greetings, DocCom members, and other Barnraising attendees! What is DocCom, ...

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Scan and compare different gases (in discharge tubes, like neon) using a DIY spectrometer

by warren 4 months ago | 0 | 544 | 2

A common classroom activity I remember is to scan different excited gases (safely inside glass tu...

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Set up a Mobius Action Cam for timelapse

by warren 4 months ago | 0 | 256 | 2

The Mobius Action Cam is used in the Infragram Point & Shoot, and ...

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Change the white balance (or other configuration) on a Mobius camera

by warren 4 months ago | 0 | 227 | 2

This is part of the documentation of the Infragram Point & Shoot b...

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Getting started with infrared photography on

by warren 4 months ago | 0 | 324 | 1

This tutorial walks through working with images on, which is an ea...

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Update firmware on the Mobius Action Cam

by warren 4 months ago | 0 | 177 | 1

If you're having trouble setting the white balance on your Mobius Action Cam (used in the [Infrag...

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Install a filter or change the lens in a Mobius Action Cam

by warren 4 months ago | 0 | 261 | 2

This activity shows how to install a custom filter and/or change the lens in the Infragram Point ...

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Request for kite/balloon mapping help at Tidmarsh Farms wetlands restoration in Plymouth MA

by warren 5 months ago | 0 | 251 | 1

A LOT of events are coming up across the Public Lab network, folks -- this one on Saturday, Octob...

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Draft: Collect a sample for laboratory analysis

by warren 5 months ago | 2 | 233 | 2

This is a draft, adapted from the DIY Oil Testing guide, authored wi...

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Remove lens distortion from photos with FisheyeGL

by warren 6 months ago | 6 | 341 | 3

FisheyeGL is a new online tool for removing lens...

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Collaboratively write the new Pocket Guide to Grassroots Mapping

by warren 8 months ago | 23 | 396 | 2

As we gear up for the launch of our [new Mini Kite and Balloon Kits](

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Use Google Drive to share large photo collections

by warren 9 months ago | 0 | 252 | 1

In #balloon-mapping, #timelapse, #photo-monitoring and other methods documented on this site, you...

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Share large numbers of photos (or files) using BitTorrent

by warren 9 months ago | 0 | 169 | 0

It's hard to share lots of images the way we often want to after Public Lab meetups, when we'...

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