Support Public Lab Today! For the last twelve years, Public Lab has hosted SpectralWorkbench.org so that people everywhere can calibrate and analyze their spectra. Unfortunately, current circumstances have led us to scale back and take certain services offline. SpectralWorkbench.org will go offline as of August 15, 2022. The SpectralWorkbench platform runs on a combination of volunteer and paid labor by the many people that build, maintain, and operate it via Public Lab. This is an effective combination thanks to the culture of Public Lab's Coding Community. Public Lab's web ecosystem, including PublicLab.org, MapKnitter.org, SpectralWorkbench.org, Infragram.org and associated projects, takes 20 hours a week from three Code Coordinators and our sysadmin. While cost effective, it is not free. Web hosting and server costs for SpectralWorkbench are approximately $1000 per month. We are doing our best to sustain programming and support for our community, and we need your help. Thank you for being part of our community. We can't wait to be back online with you. Support Public Lab by making a donation today. ###What is Spectral Workbench? [SpectralWorkbench.org](https://spectralworkbench.org) 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](https://spectralworkbench.org/stats) 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: https://github.com/publiclab/spectral-workbench.js/issues/87 **** ## Development Do you code? The codebase of Spectral Workbench is available at https://github.com/publiclab/spectral-workbench. 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: http://publiclab.org/wiki/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 | ||
|---|---|---|---|---|---|
| warren | "Hi, @mokeymark - I'm tracking the bug here: https://github.com/publiclab/spectral-workbench/issues/338 Thanks for reporting, we hope to have a fix..." | Read more » | almost 9 years ago | |||
| warren | "Hi, Abhay7417 - can you get the arduino to actually type out the values using the Arduino HID library? https://www.arduino.cc/en/Reference/HID If ..." | Read more » | almost 9 years ago | |||
| warren | "I see you've posted a second question; i'll answer there! https://publiclab.org/notes/Abhay7417/02-18-2016/question-spectrometer-using-photosensor " | Read more » | almost 9 years ago | |||
| mokeymark | "Very good idea. I also have a large selection of high-CRI white LED's. Range from I think 2500k to 5500k. I want to compare results from Ocean Opti..." | Read more » | almost 9 years ago | |||
| Abhay7417 | "Since spectral bench access values on its own, i am printing light sensor values on arduino console. Can you please help me how to make this interf..." | Read more » | almost 9 years ago | |||
| stoft | "Also would be nice ..... while you have the Ocean Optics spectrometer available, capture the best resolution spectra you can of a 2700K CFL as that..." | Read more » | almost 9 years ago | |||
| mokeymark | "Good deal. Gotta love Amazon. I'll use a laboratory power supply for the testing. " | Read more » | almost 9 years ago | |||
| stoft | "I bought mine from a Solux distributor, but I assume ones like this: http://www.amazon.com/18003-Daylight-Halogen-Degree-Kelvin/dp/B0002GS4OG are p..." | Read more » | almost 9 years ago | |||
| mokeymark | "I will try to find a SoLux 4700k to measure! I could be mistaken, but those look like a direct replacement for the bulbs in my odd kitchen fixture,..." | Read more » | almost 9 years ago | |||
| stoft | "While there will be some variation between individual lamps, even the spectra of one sample, taken with a commercial spectrometer, would be useful;..." | Read more » | almost 9 years ago | |||
| mokeymark | "I would be more than happy to help out! " | Read more » | almost 9 years ago | |||
| warren | "Oh, that sounds so great! I'm curious, if you have access to an Ocean Optics, perhaps @ygstcu and/or @stoft would be interested in a calibrated sc..." | Read more » | almost 9 years ago | |||
| mokeymark | "Thanks Warren, I'll start from scratch and try a fresh calibration. I'll be stuck in meeting purgatory for the next couple hours, but I'll jump bac..." | Read more » | almost 9 years ago | |||
| warren | "Oh, sorry, i didn't look at whether it was a good calibration, just if the calibration itself seemed to save. Checking now... So, two things stand..." | Read more » | almost 9 years ago | |||
| mokeymark | "The calibration looks like it's way off. Look at where the peaks are. This is a fluorescent light, so it looks like everything is skewed towards th..." | Read more » | almost 9 years ago | |||
| warren | "Hi, @Abhay7417 - how are you feeding these values to spectral workbench? Can you describe your problem in more detail? " | Read more » | almost 9 years ago | |||
| warren | "Hmm, your spectrum looks calibrated! It shows nanometer values, even in your screenshot. I'm not sure what the error was, but I checked the page my..." | Read more » | almost 9 years ago | |||
| mokeymark | " " | Read more » | almost 9 years ago | |||
| warren | "So glad that worked! Was getting worried :-) " | Read more » | almost 9 years ago | |||
| eigentuininhuis | "Yeah incognito mode worked :D jeeh https://spectralworkbench.org/spectrums/show2/70798 shall dump my cash now in the browser. " | Read more » | almost 9 years ago | |||
| warren | "Goodness, I'm sorry you're having trouble. Is there a way to clear your cache and try again? For one, you could try it in Incognito mode to get a c..." | Read more » | almost 9 years ago | |||
| eigentuininhuis | "oke here it goes step one firing up the spectrum capture then everything looks fine and going to save the spectrum In the save window going t..." | Read more » | almost 9 years ago | |||
| warren | "Hi, can you tell me exactly what happens? Can you try refreshing the page? If you can upload a screenshot that can help too. For the upload issue,..." | Read more » | almost 9 years ago | |||
| eigentuininhuis | "Also tried to donwload the spectrum and then upload it manualy but the button stays on loading... " | Read more » | almost 9 years ago |