Public Lab Wiki documentation

The Homebrew Sensing Project

DIY High resolution spectrometer

by homechemist about 1 month ago | 4 | 304 | 4

** Optical spectrometers are scientific instruments which can provide a huge amount of infor...

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Wheetrometer Spectrometer update: Part 2.

by JSummers about 1 month ago | 0 | 142 | 2

This note is the second to look at updating the Wheetrometer spectrometer. The original Wheet...

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Lego spectrometer - Publiclab design

by lach_myers 3 months ago | 11 | 270 | 1

Sorry about the ridiculous thumbnail - I assumed it would be reduced! I used the instructions pr...

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Updating the WheeTrometer: Code for running the CCD.

by JSummers 4 months ago | 10 | 355 | 5

This research note is about driving a photodiode array (also called a charge cap...

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How can you use computer vision to reduce spectral overlap?

by MaggPi 3 months ago | 3 | 231 | 1

Research question: Can image processing /computer vision be used to increase the free spectral r...

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CFL Bulb

by claudiaascher New Contributor 4 months ago | 1 | 243 | 2

Build a self-made mini-spectrometer (many instructions & guidelines online available), put the si...

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Bay Area Maker Faire!

by stevie 4 months ago | 0 | 388 | 1

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

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DIY Spectrometry Workshop in Lima, Peru

by warren over 7 years ago | 0 | 213 | -1

<a href="" title="TL lamps by Nadya Peek, on Flick...

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More research on "the-homebrew-sensing-project" »

The Homebrew Sensing Project is working to develop a set of low-cost hardware and free software tools community members can use to measure local health data, such as air and water quality.

Communities are increasingly concerned about the array of hazardous chemicals that surrounds us, from formaldehyde in building materials to fumes from industrial sites, and their long and short term health impacts. To address this problem, Public Lab is working to provide more low-cost chemical analysis tools, including simple devices that can be plugged into smartphones and laptops, so residents can measure the effects themselves instead of relying on costly labs.

With its community of over 3,500 active members, Public Lab has distributed over 3000 affordable open source spectrometers to help people identify petroleum in sediments in coastal Louisiana and monitor emissions from oil refineries, among other projects.

Read more about our work here: