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 | ||
|---|---|---|---|---|---|
| carlcrott | "Prepping the DVD is a HUGE pain. Tried: Xacto knives Duct tape ( works but leaves residue ) Sticking it in the freezer Super glue doesn't work. T..." | Read more » | about 6 years ago | |||
| warren | "I think the best method I've seen is to actually assemble it and loosely attach the cover. Then see where the spectrum falls on the screen. You can..." | Read more » | about 6 years ago | |||
| khov | "Does anyone have some helpful advice on how to make sure the angles are right? I am using a usb camera, which means I had to add an aditional layer..." | Read more » | about 6 years ago | |||
| khov | "Hey! Before you tape the bit of DVD into your spectomoter, make sure that you soak the purple dye out and avoid leaving fingerprints. Here is a hel..." | Read more » | about 6 years ago | |||
| xose | "Hi @zixaq I've done this before using Raspberry pi 2b and the original raspberry pi camera V2. What I've found is this: 1. Some people recommend to..." | Read more » | about 6 years ago | |||
| warren | "aha, I guess I'm wondering if it's possible to just tape over the red LED -- but in future versions we can integrate that setting for sure -- we'll..." | Read more » | about 6 years ago | |||
| zixaq | "There are a handful that all say the same thing when I search for "disable pi camera led": First up, we need to edit the config file. sudo nano /..." | Read more » | about 6 years ago | |||
| pdhixenbaugh | "Hey! Welcome to public Lab! Could you post the guide that you're following, and the config file in question? I'm not personally familiar with the ..." | Read more » | about 6 years ago | |||
| warren | "Hi, I think you could use the JavaScript version, SpectralWorkbench.js, to get an offline CSV of data - https://github.com/publiclab/spectral-workb..." | Read more » | over 6 years ago | |||
| lach_myers | "HI @warren I did not try the Lego hack, as I had no details of what to do and I had the key on order. No pics as I had my hands fully occupied. I ..." | Read more » | over 6 years ago | |||
| warren | "Awesome :tada: did you find that the lego piece also worked? Obviously we have legos in the kits already :stuck_out_tongue: But if not, we can run..." | Read more » | over 6 years ago | |||
| lach_myers | "OP check in. The focus tool arrived - its very simple, easy to use and ... works. Quite effective. Before focus on left, after on right. The onl..." | Read more » | over 6 years ago | |||
| jaksch | "Hi spectrometrists :) I've just ordered the Lego-parts and I'm going through the instructions now. I don't really follow the step: "Tape or glue ..." | Read more » | over 6 years ago | |||
| warren | "That's too bad - we can possibly start shipping keys with these if this affects everyone. A meter is pretty bad! We couldn't lengthen the case that..." | Read more » | over 6 years ago | |||
| warren | "Glad to hear it. I've noted that not all WiFi networks work, and sometimes trying on a different one (like the one I broadcast from my phone) works..." | Read more » | over 6 years ago | |||
| lach_myers | "OP Focus tests completed, with and without grating, and both show out-of-focus problems at all distances from about 80mm to over a meter - which is..." | Read more » | over 6 years ago | |||
| lach_myers | "OP again. Mine is the standard (IR filtered) V2 camera, as I wasn't sure how the software would handle the non visible end. I've started investigat..." | Read more » | over 6 years ago | |||
| Aleksi12358 | "I managed to connect with usb. Now I will try to get camera to work and calibrate my spectrometer. I followed this: https://learn.adafruit.com/turn..." | Read more » | over 6 years ago | |||
| Aleksi12358 | "I have problem with this. I cannot get my raspberry pi to connect to my wifi router. I have tried different thing in wpa_supplicant file that I fou..." | Read more » | over 6 years ago | |||
| tejadal1 | "I bought one independently, though I do recommend that you offer that option. The stark contrast between the webcam's spectrum range and the NoIR R..." | Read more » | over 6 years ago | |||
| warren | "We don't by default but probably should list that option as we do stock them. Can you email kits@publiclab.org to place an order? " | Read more » | over 6 years ago | |||
| tejadal1 | "Hello! Nice work on the raspberry pi version of the spectrometer! A question, for @Warren , does PublicLabs provide the NoIR version of the Camera..." | Read more » | over 6 years ago | |||
| warren | "I think you can use a very fine pair of tweezers to slightly rotate the Pi Camera lens for a focus change. Do post if that works for you! But yes, ..." | Read more » | over 6 years ago | |||
| warren | "This is the best. Thanks for posting, and great documentation!!! :tada: :grinning: :+1: " | Read more » | over 6 years ago |