question:raspberry-pi
question:raspberry-pi


Author Comment Last activity Moderation
warren "I'm collecting up info about this here: https://publiclab.org/wiki/raspberry-pi-infragram [activities:raspberry-pi-infragram] and questions about..." | Read more » over 5 years ago
warren "Talking with @wmacfarl, @kgradow1, @bmela and @partsandcrafts, you can get a card pre-installed with "NOOBS" -- the simplest starting operating sys..." | Read more » over 5 years ago
warren "Wasn't there an installable package or image that sets up a web-based photo interface? I think @xose mentioned it -- anyone remember? Thanks! " | Read more » over 5 years ago
warren "Good resource by @maxliboiron here! https://publiclab.org/notes/liz/09-28-2016/diy-microscope-resources " | Read more » over 5 years ago
kgradow1 "How to build a RasPi microscope with a lasercut stand http://www.instructables.com/id/ARPM-Another-raspberry-pi-microscope-made-from-Ple/ " | Read more » over 5 years ago
zengirl2 "This tutorial will help you--skip to software section after you check parts https://learn.adafruit.com/raspberry-pi-wearable-time-lapse-camera/over..." | Read more » over 5 years ago
warren "What are you hoping to measure with it? " | Read more » over 5 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 » over 5 years ago
Sidney_AstroPlant "Using NIR LEDs seems like a good option to look into and I'm happy to hear that I might not have to deal with extensive filtering! I just got a res..." | Read more » over 5 years ago
cfastie "A simple option might be to turn on some NIR LEDs when the photography happens. The NIR:VIS ratio might not match sunlight, but if you know what it..." | Read more » over 5 years ago
Sidney_AstroPlant "The kit is fully enclosed with LED with a certain blue and red ratio (I have to verify what the exact ratio is). This brings me to the conclusion t..." | Read more » over 5 years ago
cfastie "Thanks for adding a photo. NDVI is based on the assumption that the light illuminating the foliage has a certain proportion of NIR and VIS -- the p..." | Read more » over 5 years ago
cfastie "Using two cameras solves one of the two problems I described (mixed NIR and VIS). That problem can also be solved by measuring or making assumption..." | Read more » over 5 years ago
Sidney_AstroPlant "Thanks Chris for your response. My assumption was that the blue filter supplied with the RPI Noir camera blocks the red channel fully. So you get a..." | Read more » over 5 years ago
Sidney_AstroPlant "Thanks for the positive messages! I see that both of you are active in open source hardware and software initiatives. We are thinking to share our ..." | Read more » over 5 years ago
zengirl2 "Glad you posted here as you know I'm a fan of the project. :) " | Read more » over 5 years ago
cfastie "I haven't used the Pi NoIR cam and have not seen your photos, so I can only respond from general principles. Camera sensors are not as sensitive ..." | Read more » over 5 years ago
warren "Just wanted to say this looks really cool! " | Read more » over 5 years ago
warren "Hi, Ben - I hear via @stevie that you've switched to a higher power supply (2.5 amps) but again it only worked for ~24 hours. (https://data.sparkfu..." | Read more » over 5 years ago
warren "Ah I see the last transmission was March 31st, was that when you moved it? " | Read more » almost 6 years ago
warren "Hi Ben! Catching up on this now, I guess it's running #open-pipe-kit, right? How long ago was the last data upload and what's changed since, if an..." | Read more » almost 6 years ago
chrowe "That said, reading https://www.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md makes it sound like maybe all Pis support OTG " | Read more » almost 6 years ago
chrowe "I think this should be relatively easy if you are using the Pi Zero. See http://blog.gbaman.info/?p=791 But for all other Pi devices I think it is..." | Read more » almost 6 years ago
warren "Hi folks! I'm starting with the general case here, that a pi could act as a keyboard (an HID interface), for any of the above cases. I think we cou..." | Read more » almost 6 years ago