Comments

Author Comment Last activity Moderation
warren "OK, my next thought on this would be to scan 2 at once instead of 3, so that at least any non-evenness would be symmetric horizontally. But I'm not..." | Read more » over 6 years ago
warren "This looks very cool! Have you taken photos of these steps, or might you? We would love to feature this as an activity if you can illustrate at lea..." | Read more » over 6 years ago
warren "Also, we're very interested in turbidity measurements -- there's a lot coming together here: https://publiclab.org/wiki/turbidity and this seems li..." | Read more » over 6 years ago
warren "Wow, just going through this, it's amazing. Would you be willing to repost your blog in full so folks could reproduce the steps on the site here? L..." | Read more » over 6 years ago
warren "We had an old idea for this a ways back -- posted below. But yours connects so beautifully to the spectrometer, it's a great improvement! " | Read more » over 6 years ago
warren "This can be a helpful way to get the same exposure for two samples at once, which can be important when using a less-controlled camera like a webca..." | Read more » over 6 years ago
warren "Here's one attempt from a few years ago: https://publiclab.org/notes/cfastie/02-25-2014/mobile-cuvette-holder This was designed for a laser, but c..." | Read more » over 6 years ago
warren "Wow, so do you insert an LED instead of the laser into some of your light sources? How do you power them or align them -- can you show some more ph..." | Read more » over 6 years ago
warren "Hi, @programmer1200 -- saw your post on a cuvette holder and wondered if it would be possible to use it for two cuvettes simultaneously? Perhaps by..." | Read more » over 6 years ago
warren "I'm curious about the answer to this as well, as I wasn't aware they had firmware you could change! What are you hoping to do to them? Thanks! " | Read more » over 6 years ago
warren "Do you mean drivers, or the actual firmware? " | Read more » over 6 years ago
warren "I think the light is not evenly distributed, and in the scan I took, there's just more light in the middle. I'd like to correct for this but it's e..." | Read more » over 6 years ago
warren "@warren awards a barnstar to programmer1200 for their awesome contribution! " | Read more » over 6 years ago
warren "Wow, this is such a cool post! Love your upgrades. Would you be willing to post another specifically about your different attachments? Thanks so mu..." | Read more » over 6 years ago
warren "Hi, what project or kit are you using? " | Read more » over 6 years ago
warren "Posted some refinements! https://publiclab.org/notes/warren/05-04-2016/tweaks-to-foldable-mini-spectrometer-design#c17578 Making it much easier to..." | Read more » over 6 years ago
warren "Hi, possibly also see this related question: https://publiclab.org/questions/jjoll/06-03-2017/can-a-spectrometer-be-used-to-detect-material-type " | Read more » over 6 years ago
warren "Also see this related question: https://publiclab.org/questions/shaikhgous/11-18-2016/identify-plastic-material-using-infrared-imaging " | Read more » over 6 years ago
warren "Hi, I was able to re-calibrate it and got something that looks all right: https://spectralworkbench.org/spectrums/112148 How's that? " | Read more » over 6 years ago
warren "Hi, we actually don't have a profile deletion system on Spectral Workbench, apologies! " | Read more » over 6 years ago
warren "What are you hoping to measure with it? " | Read more » almost 7 years ago
warren "Here are a couple leads! https://publiclab.org/notes/cristoforetti/06-22-2016/webvalley-2016-improved-compact-spectrometer https://publiclab.org/..." | Read more » almost 7 years ago
warren "Hi, I think it's not common because many people find it easier to parse data from a full desktop computer. You might try using a Raspberry Pi which..." | Read more » almost 7 years ago
warren "There have been some efforts to use linear CCDs with arduinos, which is very cool and bypasses a lot of the mysterious image processing cameras do:..." | Read more » almost 7 years ago