This page collects efforts to develop a Raspberry Pi (#raspberry-pi) based spectrometer, building on Public Lab (and others') open source [DIY spectrometer designs](/wiki/spectrometry). ## Design goals The Raspberry Pi camera (especially the version 2 camera) is very sensitive and good resolution, very inexpensive (<$20), has very low baseline noise, and is extremely configurable. ## Software You can now [download ready-to-use camera software on our Pi Builder page](/pi-builder). ## Questions Questions can be either frequently asked questions, or "next step" challenges we're looking to solve. [questions:raspberry-pi-spectrometer] ## Activities Activities show how to use this project, step by step. [activities:raspberry-pi-spectrometer] ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| laurel_mire | "I did this! " | Read more » | about 3 years ago | |||
| bhamster | "I did this! " | Read more » | over 3 years ago | |||
| TC1994 | "Thank you for your answer :) " | Read more » | almost 5 years ago | |||
| wln215 | "You certainly can swap the second lens to shrink the thing to increase bandwidth, but decrease resolution because you are limited by pixel pitch. O..." | Read more » | almost 5 years ago | |||
| TC1994 | "Hi @wln215, thank you so much for your reply and thanks for sharing your work! I'm hoping to build a handheld spectrometer (the size of a mobile p..." | Read more » | almost 5 years ago | |||
| quorawebside2020 | "I am a freelancer web designer. I have full experience. Anyone can check my work- Click on link " | Read more » | almost 5 years ago | |||
| wln215 | " I've had success in getting sub-nanometer resolution by using lenses rather than mirrors. A short writeup is here. I still have a ton of tweaking ..." | Read more » | almost 5 years ago | |||
| craftpk | "Thanks, Srnec i found it " | Read more » | about 5 years ago | |||
| srnec | "Standalone software was also missing for me, so I created one. You can download here: https://lpuws.scot.sk/ screenshot: https://lpuws.scot.sk/lpuw..." | Read more » | about 5 years ago | |||
| warren | "Oops, link: https://github.com/publiclab/spectral-workbench.js/issues/95 " | Read more » | over 5 years ago | |||
| warren | "That's great! I think Siddhant is working through some errors here, if you are able to help out at all? " | Read more » | over 5 years ago | |||
| jenjimah | " After getting more familiar with the spectral-workbench.org and spectral-workbench.js, this is exactly what I need (offline app grounded in the sp..." | Read more » | over 5 years ago | |||
| jenjimah | " Hi Warren, Sure I'd be happy to try to add that in, it's only 2 files that need to be updated after all. However before that, there are a few thin..." | Read more » | over 5 years ago | |||
| warren | " This is great! Indeed, this is a good approach, although I found that not all computers could use an internet gadget either without drivers, it's ..." | Read more » | over 5 years ago | |||
| jenjimah | "I did this! Hardware: Raspberry Pi Zero W Software: Raspbian Stretch Lite, Windows 10 (on PC) Connection: USB configured as ethernet device; SSH i..." | Read more » | over 5 years ago | |||
| jenjimah | " Thanks for the link! I also wasn't able to use the wifi method of connecting so I also connected over usb. I had to follow the whole tutorial from..." | Read more » | over 5 years ago | |||
| warren | "Some serious progress has been made on this, for running SpectralWorkbench on the Raspberry Pi and connecting to it's camera: https://github.com/pu..." | Read more » | about 6 years ago | |||
| warren | "This is really great feedback, and excellent for others looking to assemble the kit. Great work, and thanks for sharing, Carl! On Thu, Oct 11, 201..." | Read more » | about 6 years ago | |||
| warren | "These are great questions!!! I think DVDs are consistent but have no evidence to support it. I do think they're close enough for your spacer idea t..." | Read more » | about 6 years ago | |||
| carlcrott | "More questions: 1) Are DVD diffraction angles consistent? Could a spacer be designed that would correctly orient the camera with precision + repea..." | Read more » | about 6 years ago | |||
| aga | "Are there any cut out templates for the card papers used in this design? " | Read more » | about 6 years ago | |||
| happywheelsgame | "http://happy-wheelsgames.com Hope that the site will be on top, to get more players and help people enjoy after the days tired. " | Read more » | about 6 years ago | |||
| carlcrott | "@warren I did a few things differently: I opened up the webcam + stripped it of its black plastic housing I left the DVD in the freezer overnigh..." | Read more » | about 6 years ago | |||
| warren | "Hi! Sorry u had trouble... We've found that some DVDs (even in the same batch) are much harder than others for reasons we don't understand. Did you..." | Read more » | about 6 years ago |