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 | ||
|---|---|---|---|---|---|
| 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 | |||
| limako | "You might consider Syncthing: https://syncthing.net/ It allows you to synchronize folders across multiple computers (including android phones!) It ..." | Read more » | over 5 years ago | |||
| liz | "thanks! for what it's worth, last weekend i had success transferring half a GB of photos over WiFi from a RPi to my laptop. " | Read more » | over 5 years ago | |||
| warren | "Copying in from the original comment thread: I think maybe we need to work this problem at the pi-builder level, if only by making the images down..." | Read more » | over 5 years ago | |||
| phibli | "@jenjimah I also struggled with this and give your workaround using OBS a go. Let's see...keep you posted! :) @warren has anyone tried to use the ..." | Read more » | over 5 years ago | |||
| jenjimah | "Yes when you see the live webcam feed on pi.local, you're basically just accessing a website which is streaming the pi camera video, so it doesn't ..." | Read more » | over 5 years ago | |||
| warren | "Hi, i think your message somehow got deleted? But i got it by email. Actually the Pi camera doesn't connect to a computer by USB as a webcam in ge..." | Read more » | over 5 years ago | |||
| warren | "Hi, thanks for posting your question. There are some answers here: https://publiclab.org/questions/cedarlodge/02-27-2018/uploading-images-from-rasp..." | 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 | |||
| raj | "raspberry pi camera: spectral response curves for more details go through my website you can get all details http://zipansion.com/1TSg4 " | Read more » | over 6 years ago | |||
| MaggPi | "1)Check out: - https://opencv.org/ - Good opencv-install video : https://www.youtube.com/watch?v=j6RD3X94rEA 2)It looks like Mr Warren may be ..." | Read more » | almost 7 years ago | |||
| cedarlodge | "That sounds like a great idea. Can you recommend somewhere to get up to speed with OpenCV? " | Read more » | almost 7 years ago | |||
| MaggPi | "Has anyone tried using computer vision software (openCV) to analyze the spectral data on the Raspberry PI? This may have lots of advantages since ..." | Read more » | almost 7 years ago | |||
| warren | "I got this running -- it was pretty simple to change a couple files in the boot drive. But I found that it wasn't easy to just connect via a web br..." | Read more » | almost 7 years ago | |||
| warren | "This is amazing!!!! Super great. I'll reply back to the issue in there. " | Read more » | almost 7 years ago | |||
| warren | "I would guess the normal visible light range (~400-700 nanometers or maybe 750) plus all the way up to 900 or even 1000, depending on the type of s..." | Read more » | almost 7 years ago | |||
| cedarlodge | "I went back and forth between the two cameras. In the end I went for the standard but slightly regretting it now. Is there any data on the addition..." | Read more » | almost 7 years ago | |||
| cedarlodge | "I forgot to mention, the response.text is a long html document which looks like it might be spectralworkbench.org/dashboard. Do I need to include m..." | Read more » | almost 7 years ago | |||
| cedarlodge | "Here's the code I've been working on: https://github.com/classimago/spectral-workbench.py/ I've removed the features that are geared towards my sp..." | Read more » | almost 7 years ago | |||
| warren | "Also it's really exciting to have Python API code. Perhaps if you're interested we could host it as the "official" python API interface for Spectra..." | Read more » | almost 7 years ago |