Public Lab Wiki documentation

The Homebrew Sensing Project

Assembling the Public Lab Lego Spectrometer

by warren 4 months ago | 7 | 1,784 | 6

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

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DIY-spectrometer episode 2 (using LEGO)

by TakeshiMatsumoto 10 days ago | 2 | 233 | 1

Background; We launched DIY-spectrometer three weeks ago. This product was supposed to be ...

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Spectrometer 3.0 add-on v2

by programmer1200 23 days ago | 6 | 314 | 2

Finally got around to designing a more accurate and easier to use cuvette add-on ,same overall de...

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by TakeshiMatsumoto about 1 month ago | 7 | 498 | 1

Motivation´╝Ü We are dealing with piezo crystal products. We are considering new analysis tec...

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Spectrometer with Test Tube Holder (Grade 7 Science Fair)

by RoRo about 1 month ago | 3 | 178 | 1

![image description]( "Pag...

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Atomic Emission Spectrums

by programmer1200 about 2 months ago | 3 | 197 | 1

I've been very interested in finding trace elements in both water and air samples using the spect...

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Built the entry level paperkit

by Swede2 3 months ago | 7 | 463 | 2

I built the entry level, paper-foldable spectrophotometer just before New Years. The experience I...

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Software for Calibrating and Reading Spectrometer from USB Camera

by jkew 3 months ago | 5 | 596 | 1

I wrote a quick program to capture spectrums from a DYI Lego spectrometer I built using OpenCV an...

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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: