This is a testing site only. See the live Public Lab site here »

# Raspberry Pi Spectrometer activity:raspberry-pi-spectrometer

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 (&lt;$20), has very low baseline noise, and is extremely configurable. ## Software You can now [download ready-to-use camera software on our Pi Builder page](/pi-builder). ## Questions Questions can be either frequently asked questions, or "next step" challenges we're looking to solve. [questions:raspberry-pi-spectrometer] ## Activities Activities show how to use this project, step by step. [activities:raspberry-pi-spectrometer] ... Author Comment Last activity Moderation amazinggames413 "This is Very very nice article. Everyone should read. Thanks for sharing and I found it very helpful. Don't miss WORLD'S BEST GAMES " | Read more » about 3 years ago tech4gt " @MaggPi Try it with sudo! I think global packages need to be installed with root user access now! sudo npm i -g image-sequencer " | Read more » about 3 years ago MaggPi "I did this! but I seem to get an access error. Is there a permission necessary? Thank You pi@raspberrypi:~$ npm install -g image-sequencer npm W..." | Read more » about 3 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 » about 3 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 » about 3 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 » about 3 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 » about 3 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 » over 3 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 » over 3 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 » over 3 years ago
aga "Are there any cut out templates for the card papers used in this design? " | Read more » over 3 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 » over 3 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 » over 3 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 » over 3 years ago
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 » over 3 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 » almost 4 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 » almost 4 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 » almost 4 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 » almost 4 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 » almost 4 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 » almost 4 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 » almost 4 years ago
warren "Hi, @rjboyd00, please don't use disrespectful language in any Public Lab space -- we work hard to preserve a respectful and welcoming environment, ..." | Read more » about 4 years ago
rjboyd00 "Your paper liner really sucks and doesn't fold well at all. I will be designing and 3D printing an opaque enclosure to replace most of the legos an..." | Read more » about 4 years ago