_Lead image from [2016 field work by @shalter & Lion ( @shizi ), ZhangZhang, King and @liz](https://publiclab.org/notes/shanlter/02-07-2016/guilin-pharma-mapping)_ ### People Organizer @shanlter has been doing amazing work with many organizations including GreenovationHub, DFRobot, GreenHunan, Green-seeds.org and more. Other China-based Public Lab folks include @shizi and @vickykq ### Environmental projects [notes:china] [wikis:china] **Also see https://publiclab.org/tag/china**...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| MadTinker | "@shanlter A little confused about what you used for EC. The KnowFlow spec sheets indicates a DFRobot EC sensor, but in the above you indicate som..." | Read more » | almost 7 years ago | |||
| ramarro | "i forget to add some details :) even if you use 2 arduino, at least in my scenario, and u want them communicate in some way, you have to use a com..." | Read more » | almost 7 years ago | |||
| ramarro | "@shanlter using 2 arduino (or 20) doesn't change anything, unless you use galvanically isulated ac/dc converter. if you power them from the same s..." | Read more » | almost 7 years ago | |||
| shanlter | "@ramarro totally agree! When I first use their sensors, I also have the same problem. I asked them and was told to use several Arduino boards for e..." | Read more » | almost 7 years ago | |||
| ramarro | "@shanlter did you have the opportunities to talk with dfrobot team? i have purchased a ph shield from them, and after some experiment i noticed th..." | Read more » | almost 7 years ago | |||
| shanlter | "@MadTinker, according to my knowledge, the reason why to use "isolation" is to avoid interrupting between sensors. Both OPR and EC need isolation. ..." | Read more » | almost 7 years ago | |||
| shanlter | "Hi @MadTinker, thanks for your question! I just saw your questions around dataloggers for pH! I think DFRobots' isolation module is not online yet ..." | Read more » | almost 7 years ago | |||
| MadTinker | "This is great! I'm starting an effort that will involve the parallel build of a simple in situ data logger (e.g. Riffle or maybe Cave Pearl) and a ..." | Read more » | almost 7 years ago | |||
| warren | "@xose - awesome. And even "having some troubles" is ok to post -- if we break out the issues perhaps there are folks who can chime in with solution..." | Read more » | almost 7 years ago | |||
| xose | "Wooow!! Great @warren! I'm having some troubles with the orange pi by now. This week we'll lift up a raspberry 2 with both a drone and a ballon. Le..." | Read more » | almost 7 years ago | |||
| shanlter | "Thanks for your very good suggestions, @Paquicamus, yes, this Kyoritsu company make many good kits for water testing. We didn't test conductivity i..." | Read more » | almost 7 years ago | |||
| warren | "@xose - i've tagged it as an activity, but if other related (next steps) activities were added, and a Q+A section, this could be the first post on ..." | Read more » | almost 7 years ago | |||
| Paquicamus | "Did you measure the Conductivity using any meter/Probe? Is the green colour due to eutrophication(excessive richness of nutrients in a lake or othe..." | Read more » | almost 7 years ago | |||
| shanlter | "Hi @Paquicamus, thanks for the question. TDS is tested by this: https://www.amazon.com/HM-Digital-TDS-3-Handheld-Carrying/dp/B000VTQM70/ref=sr_1_10..." | Read more » | almost 7 years ago | |||
| shanlter | "Thanks @liz and @Bronwen, if you are going to order the parts from DFRobot, let me know. The isolation module been used hasn't been online yet (but..." | Read more » | almost 7 years ago | |||
| shanlter | "Thanks for saying so @xose! Compared with Riffle or Mae d'aigua, this one is much simpler, we use Arduino board, haven't do many field test yet, et..." | Read more » | almost 7 years ago | |||
| xose | "@bronwen, @liz, am I wrong or this could be considered as "method"? It's own particularities made the KnowFlow a different one than Coqui, Riffle o..." | Read more » | almost 7 years ago | |||
| Bronwen | "@Bronwen awards a barnstar to shanlter for their awesome contribution! " | Read more » | almost 7 years ago | |||
| Bronwen | "Absolutely, @liz ! This is a really exciting (and well documented!) research note. Thanks for sharing, @shanlter ! " | Read more » | almost 7 years ago | |||
| liz | "Thank you for these well-written and elegantly photographed instructions! I found this note very inviting and i can't wait to order the parts and m..." | Read more » | almost 7 years ago | |||
| xose | "So cool!! " | Read more » | almost 7 years ago | |||
| Paquicamus | "Hi shanlter, I was wondering after looking your results if you have done conductivity ? Your published Total Dissolved Solids were measured by a p..." | Read more » | almost 7 years ago | |||
| GreenHunan | "Thank you for your detailed introduction! This is Phil volunteering for Green Hunan, and we are looking to learn & share information through th..." | Read more » | over 7 years ago | |||
| stevie | "Hi @shanlter !! We're hosting an OpenHour about classifying waste this coming Monday. Think it's something you could join? It will be at 1am GMT ..." | Read more » | over 7 years ago |