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 | "Hmm, so it did a one hour wait, then started running on 4 minute cycle, without changing it from countdown = 6? Oh, i think there's a bug in the c..." | Read more » | over 8 years ago | |||
| viechdokter | "UPDATE 2: it took a few more pix in 4 minute intervals... " | Read more » | over 8 years ago | |||
| viechdokter | "UPDATE: it did take a second capture, exactly 1 hour later. Have I set the timer wrong? " | Read more » | over 8 years ago | |||
| viechdokter | "Hi Warren, great! That's exactly what I wanted. A time-lapse plug-in for the spectrum capture software. (The bean-cam is nice for videos, Chris, b..." | Read more » | over 8 years ago | |||
| warren | "There's a macro for interval capture, though it hasn't been used in a while. https://gist.github.com/jywarren/4945996 You can paste it into the "..." | Read more » | over 8 years ago | |||
| cfastie | "If your spectrometer uses a webcam, you can use a webcam program that does interval shooting or timelapse. I tried a couple of these a few years ag..." | Read more » | over 8 years ago | |||
| shubham | "Hi Abhay. Guessing by your name, are you in India? I am working on a similar project. I am trying to interface TCD1304DG. Please get in touch. shub..." | Read more » | over 8 years ago | |||
| viechdokter | "Hi Warren, thanx again for your input. I meanwhile found the problem: the double-sided tape that was supposed to hold the camera in place just stuc..." | Read more » | over 8 years ago | |||
| viechdokter | "You are right about the cut-off of the picture. Iwill try to work around it.Problem is, the camera already is in the lowest possible position. I co..." | Read more » | over 8 years ago | |||
| viechdokter | "I meanwhile tried to "straighten up" things a bit in the setup (although the velcro tape is not very helpful for small adjustments - perhaps one co..." | Read more » | over 8 years ago | |||
| warren | "Hmm, I'm not sure, but it seems like the image is being cut off because the camera is a little too high. See how the black bar covers the area wher..." | Read more » | over 8 years ago | |||
| viechdokter | "And here is the proof that the camera works: " | Read more » | over 8 years ago | |||
| viechdokter | "Hi Warren, first of all thank you for your help. Here are a few images of the setup: " | Read more » | over 8 years ago | |||
| warren | "Hmm, can you upload a picture of the inside of your device? That does look wrong, and it's hard to imagine what's causing it. Also, can you upload ..." | Read more » | over 8 years ago | |||
| viechdokter | "Here is the spectrum: https://spectralworkbench.org/spectrums/75504 I wonder if I have put in the DVD-grate the wrong way round or something. I..." | Read more » | over 8 years ago | |||
| warren | "Hi! Can you post what you see in an image, or a link to a spectrum? " | Read more » | over 8 years ago | |||
| warren | "Ah, I'm so pleased. " | Read more » | almost 9 years ago | |||
| mokeymark | "Yes! It worked with a full resolution image. Thank you!!! " | Read more » | almost 9 years ago | |||
| warren | "Hi -- I believe this is resolved in v2.1.10 due to better precision management. Please try re-uploading the image and saving; I did so with a large..." | Read more » | almost 9 years ago | |||
| mokeymark | "This is the lowest resolution I can go on my cell phone (Galaxy Note 4). I believe it's 1152 x 2048 " | Read more » | almost 9 years ago | |||
| warren | "Hi, @mokeymark - I have a good theory as to the issue with your spectrum -- that the uploaded image is too big for our data storage system. I think..." | Read more » | almost 9 years ago | |||
| mokeymark | " " | Read more » | almost 9 years ago | |||
| mokeymark | "I tried the calibration again, on a fluorescent bulb spectra captured with my cell phone and the foldable spectrometer. I cleared the web browser c..." | Read more » | almost 9 years ago | |||
| mathew | "not sure if you've looked already, but it might be worth looking at the Hacteria's DIY Nanodrop: https://publiclab.org/notes/gaudi/04-03-2014/diy-m..." | Read more » | almost 9 years ago |