donblair 82 research notes and 700 wiki edits | Joined over 6 years ago | Moderator






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"Yes! We should loop in some folks from FarmHack, too -- @dorncox and others have lots of good ideas around using Landsat imagery ... " | Read more » about 5 years ago
"Thanks so much again, @nedhorning and everyone at Cape Cod Baywatch! " | Read more » about 5 years ago
"It would be truly fantastic to have such a system for capturing data from environmental monitors -- air quality, water quality -- with the idea tha..." | Read more » about 5 years ago
"Wondering: would graphite of this sort work well as conductivity probes, too? Do the rod comes in standard diameters? Where would you grab them onl..." | Read more » about 5 years ago
"Jack, this is fantastic. Very clear explanation! Could we have a follow-up note at some point soon re: e.g. how you might use the WheeStat potent..." | Read more » about 5 years ago
"Did you see the article AmySoyka posted about the Dylos? http://publiclab.org/notes/Schroyer/06-26-2014/broadcast-dust-readings-from-a-smartphone#c..." | Read more » about 5 years ago
"Did you see the article AmySoyka posted about the Dylos? http://publiclab.org/notes/Schroyer/06-26-2014/broadcast-dust-readings-from-a-smartphone#c..." | Read more » about 5 years ago
"Update: Brett Longworth at WHOI just pointed me to article about using oil in ROVs! http://oceanexplorer.noaa.gov/technology/subs/hercules/hercule..." | Read more » about 5 years ago
"Great note! I'm just going to paste in some of the comments from our email thread here, for reference: "Note in this photo comparison the expansi..." | Read more » about 5 years ago
"Also: how hard would it be to rig up some sort of 'pen' that connects to a 555 and writes out a 'record' of the conductivity on some physical mediu..." | Read more » about 5 years ago
"ZOMG that's brilliant. I'm going to try to bring the materials required to do a rough prototype of this to Plymouth -- but anyway shouldn't be hard..." | Read more » about 5 years ago
"E.g. I just found this: http://wiki.openmusiclabs.com/wiki/PWMDAC And, oh gosh, this is fun: http://sensorium.github.io/Mozzi/ And: http://www.ucho..." | Read more » about 5 years ago
"Good call on the power control chip -- for the riffle-ito design, I'm just using an LDO, which should provide a relatively clean signal? But yeah,..." | Read more » about 5 years ago
"Egads! Mat, thanks for pointing this out! I totally flubbed that one: in the 555 approach, the signal that is passing through the water is indee..." | Read more » about 5 years ago
"Ah -- great thoughts! And your comment points to an important issue, which is that I myself was unclear (and still am, a bit) as to the utility of..." | Read more » about 5 years ago
"Bryan, xxv, Chris, Dave -- thanks so much for the fantastic ideas and reflections you've developed here. I'm going to try to digest these ideas ov..." | Read more » about 5 years ago
" Ah, you didn't fail at all -- I just keep dithering about the final design, and have been hestitating to hit 'print' :) But I think this might be..." | Read more » about 5 years ago
"Thinking about this a bit further: when determining particle counts, is the "% low pulse occupancy time" technique relatively insensitive to tempe..." | Read more » about 5 years ago
"Okay, BOOM: https://github.com/Pioneer-Valley-Open-Science/mini-meter Nice picture, here: https://github.com/Pioneer-Valley-Open-Science/mini-me..." | Read more » about 5 years ago
"Oh. Heh. I sort of forgot that we have datalogging capability on the Riffle board now:) Let me tally up what it'd cost to have it in a minimalist ..." | Read more » about 5 years ago
"Yep, I think so. The Digispark is only $9, I think, because it uses the ATTiny processor, which is super cheap, and uses a really tiny board. It ..." | Read more » about 5 years ago
"Hah! -- $15! Sigh ... $5 would be even better, no? And it should have wifi too, right? :) The basic version of an OpenLux + dust sensor with reco..." | Read more » about 5 years ago
"Ah, great points. It's true that having immediate, "here's how many particles your device registered in the last 30 seconds" data might not be so ..." | Read more » about 5 years ago
"Follow-up -- there's some nice info on IR photodiodes (at least the sort that are in a typical IR remote), here -- including a link to a datasheet...." | Read more » over 5 years ago

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