answered
answered


Author Comment Last activity Moderation
cfastie "Although the absolute values you computed for NDVI are lower than they should be, it appears that your process is successfully discriminating betwe..." | Read more » almost 6 years ago
Ag8n " The best way would probably be reverse osmosis. There is a filter that goes along with this set up, but it rarely needs changed. You could go wi..." | Read more » about 6 years ago
Anice " Thank you so much Chris! This information is very helpful. I plan on researching about the spectral sensitivity of my camera (Canon SX230 HS) and ..." | Read more » about 6 years ago
cfastie "You are correct that both red and NIR pass through the red filter (Rosco Fire # 19) and both are captured in the red channel of the photograph. It ..." | Read more » about 6 years ago
bttgcm " The Standard Methods book can be found on archive.org. it is not the last edition but it is a good start. https://archive.org/details/StandardMeth..." | Read more » about 6 years ago
warren "Hi, also noting this great project; https://publiclab.org/babylegs by @maxliboiron ! " | Read more » about 6 years ago
warren "Made an issue for this! Create bot to detect images with EXIF data and copy it into the Archive.org metadata - https://github.com/publiclab/leaflet..." | Read more » about 6 years ago
warren "Just as we're speaking, @cfastie posts :smiley: https://publiclab.org/notes/cfastie/11-28-2018/nano-particle-monitoring ! " | Read more » about 6 years ago
warren "@Cbarnes9 are you at all interested in something like this, where it'd be a PMS7003 connected to an Arduino to just get the data off as quickly as ..." | Read more » about 6 years ago
warren "I was also able to confirm that adding a resistor in-line with one of the probe wires lowered the frequency! Much lower and less annoying! " | Read more » about 6 years ago
warren "We now have a great solution for this! Pi Builder!!! https://publiclab.org/pi-builder " | Read more » about 6 years ago
edie_blues "Hello again @warren :) Two quick questions: is it possible to upgrade my account to a moderator so that I can publish a wiki (see above)? any pr..." | Read more » about 6 years ago
warren "Awesome! -- Post to this group at plots-spectometry@googlegroups.com   Public Lab mailing lists (http://publiclab.org/lists) are great for ..." | Read more » about 6 years ago
msolomon "Thank you both for your suggestions! I have it working now. " | Read more » about 6 years ago
warren "Hi, I believe this relates to the angle of your camera in the box. If you try to point it further up or down, you should be able to center the spec..." | Read more » about 6 years ago
Pushpaw "I suspect you have a problem with the vertical alignment of your camera. With the camera that originally shipped with the kit there wasn't room to ..." | Read more » about 6 years ago
edie_blues "Hi @warren, Yes, would love to test out the page as it is now. Would it be possible to upgrade my account to a moderator? Right now I can't publi..." | Read more » about 6 years ago
warren "Hm. I wonder how close we are on a v4 upgrade. It'd add some chaos, but it's essentially "now or later" chaos. https://github.com/publiclab/plots2..." | Read more » about 6 years ago
edie_blues "Hi @joyofsoy and @warren! I've added a carousel (not finished), to give you an idea of how it would look like. Let me know what you think :) As a..." | Read more » about 6 years ago
edie_blues "Good question @warren. I think in terms of how it looks, v3 and v4 are similar, but v4 is obviously more powerful. Biggest changes are flexbox and ..." | Read more » about 6 years ago
warren "Hmm, i see. I think they'll be close enough that we can make it work... I did a test here: https://publiclab.org/wiki/sandbox-3 We will be upgradi..." | Read more » about 6 years ago
edie_blues "Hi again @warren, I've just realized that Froala uses bootstrap 4.0 and not bootstrap 3. I assume I should be using bootstrap 3 as we discussed in..." | Read more » about 6 years ago
nanocastro "Hi. Sorry for the late answer. We are using the PMS7003 but the 5003 is almost the same except for the size. We were using Arduino Mega with three..." | Read more » about 6 years ago
roberts_ecofarm "Changing the frequency range would require either changing the duty cycle of the 555 or modulating the amplitude. I think the the probe (resistor)..." | Read more » about 6 years ago