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Spectral Workbench

###What is Spectral Workbench? []( is a web based application to collect, archive, share, and analyze spectral data, for Public Lab [DIY spectrometers](/wiki/spectrometer) and other spectrometers. With it, you can: * connect your USB [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * scan and save samples * wavelength calibrate your spectrometer * plot light intensity as a function of wavelength (average digital consumer cameras have a range of 400 to 700 nm) * create sets of multiple spectra to visually compare and analyze scans * download CSV data for offline analysis * view others' data and discuss * find similar data in [a database of over 60k spectra]( No download is required -- just a web connection. The Chrome browser works best, but most standard-compliant browsers are supported. It is possible to use from an Android smartphone, preferably with the Firefox browser which allows you to specify which camera to look through. **** ###Contents * [Learn to use the software](/wiki/spectral-workbench-usage) * Learn about the [available tools](/wiki/spectral-workbench-tools) * Learn about [Calibration](/wiki/spectral-workbench-calibration) * Learn about the [Snapshots system](/wiki/spectral-workbench-snapshots) * Learn about the [Operations system](/wiki/spectral-workbench-operations) * [Spectrometry in general](/wiki/spectrometer) * [Applications & uses](/wiki/spectral-analysis) * [Construction](/wiki/spectrometer-construction) * [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * [Foldable Mini-Spectrometer](/wiki/foldable-spec) * [Troubleshooting](/wiki/spectral-workbench-help) * [API Docs](/wiki/spectral-workbench-api) **** ###Intro video ## Browsers Spectral Workbench should work on Chrome (in Windows/Mac/Linux/Android, but not iOS), Firefox (Windows/Mac/Linux/Android), or Opera (Android). It may work on other browsers and we are working on expanding coverage; read more on this page: **** ## Development Do you code? The codebase of Spectral Workbench is available at The server is written in Ruby on Rails, with a lot of client side code in JavaScript. You can read about [the JavaScript API here](/wiki/spectral-workbench-api). We really need more developers, so if you are interested, please get involved! A great place to start is the "plots-dev" mailing list for software developers: **** ## FAQ We're collecting and working our way through a range of questions about Spectral Workbench -- if you can contribute your own questions, or answer others', please do! [questions:spectral-workbench] **** ## Troubleshooting If you feel you've encountered a bug with the software -- very possible! Please look through existing issues listed here, file a new one if you don't see something similar, and help to add any observations to existing issues shown here. Thanks for helping improve this open source software! [questions:spectral-workbench-issues] ...

Author Comment Last activity Moderation
mimiss "Thank you for this idea! I have laser pointers in a few colors in my house that I can try out. On May 5, 2020, at 11:19 AM, notifications@publicla..." | Read more » over 2 years ago
liz "I think I used a red laser and a green laser to get the calibration to work at some point... " | Read more » over 2 years ago
kgradow1 "Could you use a laser pointer and still go through the same workflow with @cfastie's reference image? I'm not sure if the peaks would line up, th..." | Read more » over 2 years ago
liz "Hi Damian, Sorry to hear of this trouble! Tomorrow, and every Tuesday at 3pm ET / 7pm GMT, find us on the video link listed at the top of: https://..." | Read more » over 2 years ago
yp1080030 "Note Work Computer CLICK HERE " | Read more » over 2 years ago
warren "Hi! I've noticed that the Pi runs /much/ faster when adequately cooled -- strange but true, because I think it throttles to reduce temperature. So..." | Read more » almost 3 years ago
danieisnietgek "Thanks changed it like you mentioned " | Read more » almost 3 years ago
bsugar "@danieisnietgek, I'm not sure if you can edit the title, but if have a suggestion which is that you add something about the raspberry pi. For exam..." | Read more » almost 3 years ago
mp_pathela ":tada: " | Read more » about 3 years ago
akheelbm "NIce post Thanks for the information you shared,great workBuy Building Materials Online " | Read more » over 3 years ago
Govtjobofassam "valuable ! thanks for that ! " | Read more » over 3 years ago
bansal_sidharth2996 "Nice to see the progress over SWB repos. " | Read more » over 3 years ago
ArtistMonkey83 "I wanted to know if B2 is == 435.83 and if G2 is == 546.07 nanometers. I am also interested in knowing how these values where chosen. I looked up s..." | Read more » over 3 years ago
ArtistMonkey83 "The github link is no longer active. " | Read more » over 3 years ago
ArtistMonkey83 "This link is no longer active. " | Read more » over 3 years ago
tammylawry24 " food survey Customer Satisfaction Survey is a way to tell your feedback and problems that you have faced Participate in food s..." | Read more » over 3 years ago
warren "Hi! You should be able to find 3d printable models at, and potentially some other variants at" | Read more » over 3 years ago
stef " hello,i am trying to search notes for a 3d printed spectrometer which i saw some time ago i have been offline for sometime due to health issues an..." | Read more » over 3 years ago
MrBumper " I seem to remember the web site app does not cope well with two cameras. If you can find a software toggle on your system (you may even need to go..." | Read more » over 3 years ago
joyofsoy " Thanks so much @aemilius89! We just finished updating the embedded videos you linked to, and have on more on the main page that will be taken care..." | Read more » almost 4 years ago
Bronwen " Thanks, Emiel- Thanks for the heads up, we'll try to get these fixed asap. And yes! If you find additional broken links please do share them. Muc..." | Read more » almost 4 years ago
aemilius89 " The following pages miss functional videos." | Read more » almost 4 years ago
Bronwen " Hi aemilius89 -- thanks for the heads up! We recently made some changes to our youtube account, so it looks like we may need to get back in there ..." | Read more » almost 4 years ago
warren "Awesome! -- Post to this group at   Public Lab mailing lists ( are great for ..." | Read more » almost 4 years ago