Community research

MadTinker commented on Sensor: ORP versus PH almost 7 years ago

@gretchengehrke Thanks! That's kinda what I thought, but wasn't sure. I'll likely end up with bot...

gretchengehrke commented on Sensor: ORP versus PH almost 7 years ago

Hi @MadTinker, oxidation-reduction potential (ORP) and power of hydrogen (pH) measure different c...

Sidney_AstroPlant commented on an answer about AstroPlant RPi sensory system almost 7 years ago

Using NIR LEDs seems like a good option to look into and I'm happy to hear that I might not have ...

liz commented on Build KnowFlow: automatic water moniter almost 7 years ago

Hi @xose , @shantler did create a method page, and this now appears there as an activity! Check i...

MadTinker commented on Build KnowFlow: automatic water moniter almost 7 years ago

@rockets Thanks for the summary. I thought I was going to have to move in a different direction,...

jeffalk commented on an answer about Is it important to account for humidity using optical particulate matter monitors? almost 7 years ago

My quick perusal of the attached pdf didn't find anything about effects of humidity. What you ...

cfastie commented on Red vs. blue filters for NDVI almost 7 years ago

Sid, Pretty big difficulties. The sensor does not know what hit it. Each pixel produces a value ...

sid commented on Red vs. blue filters for NDVI almost 7 years ago

This is excellent work here! I was wondering how software could help eliminate the tedious task ...

ramarro commented on Build KnowFlow: automatic water moniter almost 7 years ago

@shanlter i havent wrote anything about my project its just an hobbies for my aquarium :) @rock...

cfastie commented on an answer about AstroPlant RPi sensory system almost 7 years ago

A simple option might be to turn on some NIR LEDs when the photography happens. The NIR:VIS ratio...

rockets commented on Build KnowFlow: automatic water moniter almost 7 years ago

DFR0504_Analog_Isolation_Module-V1.0-_Schematic.pdf here is the schematic of the isolator.

shanlter commented on Build KnowFlow: automatic water moniter almost 7 years ago

Thanks @rockets! I hope this could help answering your questions, @ramarro. btw, The GUI of your ...

rockets commented on Build KnowFlow: automatic water moniter almost 7 years ago

I just try translate youyou's answer into english. Q:The parts for the KnowFlow-esque are going ...

Sidney_AstroPlant commented on an answer about AstroPlant RPi sensory system almost 7 years ago

The kit is fully enclosed with LED with a certain blue and red ratio (I have to verify what the e...

david_uwi commented on Simple data logger almost 7 years ago

Thanks for bringing this to prominence again. I will attach the code that runs the microprocessor...

stevie commented on an answer about Is it important to account for humidity using optical particulate matter monitors? almost 7 years ago

Hi Jeff, thanks! This is great. I'll copy the question link into that email chain as well. Think ...

stevie commented on an answer about Is it important to account for humidity using optical particulate matter monitors? almost 7 years ago

Wow. These are awesome resources!! Thanks for clarifying the seeing/sizing distinction.

liz commented on A Questions page to encourage discussions through better UX almost 7 years ago

hi @siyuan , I'm excited to help you get whatever other information you need to ideate and sketch...

liz commented on Simple data logger almost 7 years ago

Thanks for this super work @david_uwi ! I tagged this note so that it appears with the other data...

ramarro commented on Build KnowFlow: automatic water moniter almost 7 years ago

@shanlter i think that DFR EC will be better than what i use, at least after a brief look to the ...

shanlter commented on Build KnowFlow: automatic water moniter almost 7 years ago

Yes, you got it :) @MadTinker If you want to use DFRobot's EC sensor, you'd better test your samp...

shanlter commented on Build KnowFlow: automatic water moniter almost 7 years ago

@ramarro, you tried so many stuff! Thanks for the info on EC, I am learning it. Lots of the quest...

guolivar commented on Is it important to account for humidity using optical particulate matter monitors? almost 7 years ago

Yes, environmental conditions do affect the ability of an optical sensor, not too much to "see" a...

MadTinker commented on Build KnowFlow: automatic water moniter almost 7 years ago

@shanlter @ramarro Dang, got lost in the comments .... my bad.

ramarro commented on Build KnowFlow: automatic water moniter almost 7 years ago

@MadTinker, @shanlter use DFRobot EC probe. I am using EC_mini_v31 we are two different person ...

MadTinker commented on Build KnowFlow: automatic water moniter almost 7 years ago

@shanlter A little confused about what you used for EC. The KnowFlow spec sheets indicates a DF...

kingston312ricky commented on Why is 'peer-to-peer' file sharing useful? Should I put effort into learning how to do it? almost 7 years ago

Awesome explained, and this is very helpful! I use cloud storage usually for everything, and for ...

jeffalk commented on Is it important to account for humidity using optical particulate matter monitors? almost 7 years ago

Yes is the simple answer: high humidity and/or moisture can effect particulate counts by raisi...

ramarro commented on Build KnowFlow: automatic water moniter almost 7 years ago

i forget to add some details :) even if you use 2 arduino, at least in my scenario, and u want t...

warren commented on Balloon Kits in the Wild! almost 7 years ago

https://www.instagram.com/p/BV-hr1AgCO8/