| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jhondue123456 | "https://www.google.com/ " | Read more » | 8 months ago | |||
| liz | "Hi @mprof9, if you post your project following the template above, people can start asking questions and collaborating! sensor calibration is a big..." | Read more » | about 6 years ago | |||
| warren | "Wow, that's great -- if you'd like to build out more about it, feel free to upload more photos and potentially create a page about it using one of ..." | Read more » | over 6 years ago | |||
| mprof9 | "Hi Warren. Yes, this is a project of mine. This is currently run at home, sampling ambient air outside on my terrace. Since I live in a small villa..." | Read more » | over 6 years ago | |||
| warren | "Hi, this is interesting! Is it your project? " | Read more » | over 6 years ago | |||
| elongo | "Thank you so much @LaPa for your insights and sharing the experience. Would be possible for you share with me how did you implemented, using the ra..." | Read more » | about 7 years ago | |||
| LaPa | "Hi, Elongo, I didn't reach the goal to measure health of plants most because Red Horning wrote me, by private mail, the that technique wasn't prope..." | Read more » | about 7 years ago | |||
| elongo | "Thank you!! " | Read more » | about 7 years ago | |||
| liz | "Hi! @LaPa (hoping to trigger a notification email to them) :) " | Read more » | about 7 years ago | |||
| elongo | "Hi @LaPa, 1) just wondering which steps you followed to setup and run ImageJ and Fiji in your Raspberry Pi, and get the NDVI images. I am followin..." | Read more » | about 7 years ago | |||
| tonyc | "Have you all seen the PhotosynQ project? It is an LED based device using reflectance to measure leaf chlorophyl. it started as an incubated kit on ..." | Read more » | over 8 years ago | |||
| cristoforetti | "@tonyc the project is really under development in these days. Here at webvalley 2016 we are concentrating on measuring grapes and raspberries. Hope..." | Read more » | over 8 years ago | |||
| tonyc | "That's a really cool use case I hadn't heard of before! Is it something you've had luck with using the PL spectrometer, reading fruit? I imagine e..." | Read more » | over 8 years ago | |||
| cristoforetti | "@tonyc, the idea is having a portable spectrometer to evaluate fruit maturity in the field to decide about harvesting. In this sense design is cert..." | Read more » | over 8 years ago | |||
| tonyc | "Is the form factor your main concern in these designs? I'm curious what is the test you are trying to run in the field with the spectrometer? " | Read more » | over 8 years ago | |||
| dhaffnersr | "I have a similar camera in my spectrometer and was having the same light spot interfering and showing up in the spectral data, I had to bring mine ..." | Read more » | over 8 years ago | |||
| warren | "This is especially cool as it uses a Raspberry Pi camera, which it seems can be set for fixed exposure and uncompressed image capture. I'm going to..." | Read more » | over 8 years ago | |||
| dhaffnersr | " stoft, see, that's what I'm talking about, finding the work-around, that's actually a great idea and very cost effective. " | Read more » | over 8 years ago | |||
| stoft | "Yes, both aluminum and silver oxidize very rapidly which is why all mirrors with those surfaces are coated -- the type of coating affects the mirro..." | Read more » | over 8 years ago | |||
| dhaffnersr | " cristoforetti, oh yeah, that's perfectly fine I do the same thing when I build a prototype. I use some pretty unconventional material sometimes! " | Read more » | over 8 years ago | |||
| cristoforetti | "@dhaffnersr thank you for the reference. You are certainly right, my only point is that it will take some time to have an aluminum coated mirror, i..." | Read more » | over 8 years ago | |||
| dhaffnersr | "hey cristoforetti , I just wanted to give you some info on why you should be using the aluminum coated mirrors: Aluminum is also common used in m..." | Read more » | over 8 years ago | |||
| cristoforetti | "@stoft thank you very much for the clarification and suggestions. About 1) I am looking to use cars mirror, that should be front-surface mirrors. ..." | Read more » | over 8 years ago | |||
| stoft | "@cristoforetti, the camera focal distance is based on using a slit to simulate collimated light -- non-collimated light gives multiple diffraction ..." | Read more » | over 8 years ago |