Community research

charlotte_clarke commented on Building the Simple Turbidity Sensor Prototype 26 days ago

We have 4 turbidity sensors up and running thanks to Will's very clear and helpful instructions! ...

warren commented on What are different methods of measuring water turbidity? 26 days ago

Folks at NASA AREN (#aren) sent this over -- a smartphone method for water color, interesting! h...

warren commented on Building the Simple Turbidity Sensor Prototype 27 days ago

warren commented on Building the Simple Turbidity Sensor Prototype 27 days ago

I did this! My first error it was a silly mistake - the yellow/red/black cable was plugged in ba...

zomb23 commented on Feasibility-check: NDVI analysis of moss 28 days ago

Hi Chris, thank you for the quick and comprehensive response. That sounds really promising. I wil...

eladorian commented on How can we build this wind turbine to power lights? 28 days ago

Hi there - a bit late on the thread, hope this goes through to Mustapha. My name is Elad Orian a...

jevs commented on CFL Selection 29 days ago

I cannot find anything lower than 2700K, so I am going to order a 5W 2700K...hope it works out.

cfastie commented on Can open source beat this? about 1 month ago

I'm not familiar with the details, but I think the goal was to protect the sensor from precipitat...

alnaumiwebs commented on Can open source beat this? about 1 month ago

HI. Can you give some details about the homemade radiation shield ? Two plastic cans. One surroun...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

What is the best focal length No IR lens to get?

jevs commented on Removing IR filter from basic webcam? about 1 month ago

No luck on this one either. Not sure what portion of this lens assembly is the IR portion, but th...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

The only kit I see for sale is the Lego kit? I do not see them selling a v3.0 kit? I plan to mak...

stef commented on Removing IR filter from basic webcam? about 1 month ago

save some time and get the v3.0 kit from the store and research the notes from @Stoft and @Warren...

liz commented on How CAFOS (Factory Farms) Are Plaguing North Carolina Communities of Color about 1 month ago

Here are the original attachments @zengirl2 had sent via email: EJ_Presentation__1.pptx EJ_Pr...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

It "looks" just like the one at the top of this page within the blue legos. https://store.publicl...

esmoreido commented on Designing a Simple Water Sensor Kit about 1 month ago

Hi and thanks for the post! I have had an experience with the DFRobot TDS sensor (bought here htt...

stef commented on Removing IR filter from basic webcam? about 1 month ago

Can you further identify the camera? Is it used in any of the projects? Were can I purchase one? ...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

Yeah. I understand what your saying and I had seen many cameras like this on the net where people...

stef commented on Removing IR filter from basic webcam? about 1 month ago

In your second image look at the ccd sensor identified as V2 ithas a reddish tint to it look for ...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

Unfortunatly the lense in the removable piece was only one piece as far as I can tell. It did not...

stef commented on Removing IR filter from basic webcam? about 1 month ago

The ir cut filter should be on the back of the lens barrel assembly you can check for it by looki...

stef commented on Removing IR filter from basic webcam? about 1 month ago

if you read my research note,it was quite specific about the model of the spectrometer used in th...

jevs commented on Removing IR filter from basic webcam? about 1 month ago

I looked and it seems like you may be talking about the laptop camera module? This is the one I w...

stef commented on Removing IR filter from basic webcam? about 1 month ago

Hi, the camera used in the plab spectrometer does indeed have an ir filter' I published a note qu...

derin-guven commented on How can I waterproof kombucha leather? about 1 month ago

how much milliliters or liters did u use oil and how much gram did u use beeswax for leather ?

paul_delamusica commented on How to make CHEAP spectrometer for chemical material analysis, and how can I compare sample spectra with my own database?? Is it some special soft?? about 1 month ago

For serious work at low cost, one should consider a used professional spectrometer. I am working ...

paul_delamusica commented on Can I use a single camera with RGB and extended NIR to capture NDVI? about 1 month ago

It should be quite straight forward. My suggestion is to purchase a full spectrum converted high ...

rockets commented on KnowFlow will have a NB-IoT version one in few weeks about 1 month ago

glad to come back!

cfastie commented on Can I use a single camera with RGB and extended NIR to capture NDVI? about 1 month ago

`>>Is it possible to use an NIR sensitive camera to take the image and then use the red and...

joyofsoy commented on Reused fracking water? about 1 month ago

We got this response on Twitter: Try to set it on fire?https://t.co/tWmJr26diI— Josh Levinger ([...