JSummers 35 research notes and 60 wiki edits | Joined almost 6 years ago

I am an associate professor of chemistry at Western Carolina University. I am interested in developing open source hardware and software for environmental monitoring and science education.
















New WheeStat Hardware

by JSummers almost 4 years ago | 1 | 214 views | 1





Syringe pump mechanicals.

by JSummers over 4 years ago | 2 | 637 views | 4



Toward calibrating H2S sensors.

by JSummers over 4 years ago | 1 | 155 views | 5


DIY cold brewed coffee maker

by JSummers over 4 years ago | 6 | 387 views | 4




SE Regional Meeting of the Amer. Chem. Soc.

by JSummers almost 5 years ago | 2 | 123 views | 1


Atlanta Maker Faire

by JSummers almost 5 years ago | 1 | 117 views | 1


WheeStat kit assembly

by JSummers almost 5 years ago | 15 | 668 views | 3


Getting your WheeStat set up.

by JSummers about 5 years ago | 13 | 1,210 views | 6


Open Hour on Water Quality, Monday July 21, 8pm

by donblair about 5 years ago | 5 | 142 views | 0

Hey Folks! Tonight, July 21st, at 8 PM It's a Google Hangout -- so, everywhere! ...

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Spectrometer experiment

rjane20082 asked about 10 days ago

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What's the best way of estimating the altitude of your balloon when mapping?

molangmuir10 asked about 2 months ago

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What soil testing methods might be good for someone who lives by a highway overpass?

stevie asked about 3 months ago

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Diffraction grating (200nm - 400nm) & Light, Vendor/Source Identification

darkdimension asked about about 1 year ago

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Quantitative analysis of wood moisture

MarcioPamplona asked about over 1 year ago

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Hi I'd like to know more on this project

Droopas asked about over 1 year ago

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What is my potential all over the place?

Greg_H asked about over 1 year ago

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please tell me

Abdulhakeem0801 asked about over 1 year ago

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Desktop Spectrometer Kit Availablility

bicwood asked about over 2 years ago

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Is it possible to log the data from a dustduino without a wifi network?

kp55 asked about over 4 years ago

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View these maps at MapKnitter.org »

Title Creation date Image

Comments

Comment Last activity Moderation
"I believe the yellow color you see when burning wood or paper is the atomic emission from sodium ions in the material. It is the same color you se..." | Read more » 2 days ago
" You could get a local lab to test for metals using atomic absorption or atomic emission. You would have to look up the best technique for the met..." | Read more » about 2 months ago
" Getting the solar spectrum was a good idea. Clearly, the lines in this are not due to the light source and must be attributed to the detector. O..." | Read more » about 2 months ago
"You may be able to do this using the GPS on your phone with an app like Strava. I think the Z direction accuracy of GPS is not as good as the XY a..." | Read more » about 2 months ago
" I think what you want will be called a barometer. It is what drones use to measure altitude. They are not super expensive, here is one for $6.70..." | Read more » about 2 months ago
"How would this differ from wiki pages? Seems to me that the difficulty with wiki pages is keeping them up to date. That appears to be the problem ..." | Read more » about 2 months ago
" @oskarbob, the drivers must be downloaded from texas instruments. You can get them from http://www.ti.com/tool/STELLARIS_ICDI_DRIVERS. Instructi..." | Read more » 3 months ago
"Lehninger, Principles of Biochemistry, Fourth Edition, David L. Nelson and Michael, M. Cox. WHFreeman & Co, NY. Chapter 6, Sections 6.3 (Enzyme..." | Read more » 7 months ago
" Hi Ag8n, Thanks for your interest. No, we are not headed toward chromatography although the flow cell & spectrometer are pretty well set up fo..." | Read more » 7 months ago
" Hi Ag8n, Thanks for the comment. I am glad you are interested. We just connected the VBAT pin to the +3.3 volt bus. You did not miss any descrip..." | Read more » 7 months ago
"Hi @iresal, The correct integration time is the 15 ms time. I think that is the minimum time to read the data from the output pin. The 4 ms value ..." | Read more » about 1 year ago
"Hi @iresal, you are correct about the clock roll value being related to the integration time. As the code is written, the integration time equals ..." | Read more » about 1 year ago
"You can get gratings from places like Thor Labs or Edmond Optics. For a uv lamp, I would look at Thor labs or spectrometer vendors like Ocean Opti..." | Read more » about 1 year ago
"Hi @ONECore and @hmx, I just posted a research note on this topic. it is here: https://publiclab.org/notes/JSummers/06-03-2018/updating-the-wheet..." | Read more » about 1 year ago
"Anyone interested in this project? I am working on code to use the Toshiba TCD1304 ccd in this project. I hope to have this to a point where I c..." | Read more » about 1 year ago
"Nice project. This spectrometer could fit into an open-source chemical kinetics project I am working on. If you would be interested in collaborati..." | Read more » over 1 year ago
"Hi @MarcioPamplona, Step one is to figure out where the absorbance shows up. By that I mean the wavelength that you need to detect. Googling "woo..." | Read more » over 1 year ago
"Hi @Greg_H, If the altSPI files are not on your usb memory you can download them here: https://github.com/SmokyMountainScientific/altSPI There sho..." | Read more » over 1 year ago
"Hi @Greg_H, I am sorry that you are still having trouble with your WheeStat. While it is possible that it is a software problem, it seems more like..." | Read more » over 1 year ago
"Building a spectrometer is a fine university project, but this will not work for detecting fentanyl. Fentanyl does not absorb in the range where t..." | Read more » over 1 year ago
"Hi @nyck31, The short answer to your question is no. The spectrometer will measure light in the visible and perhaps short IR wavelengths. Fentay..." | Read more » over 1 year ago
"Hi, I do not think a peristaltic pump would work very well since it is not designed to have very precise volume control. I have a new syringe pump ..." | Read more » over 1 year ago
"Hi @Greg_H, sorry you are having trouble. The microcontroller should be powered up, and it must be if you are getting any kind of readout at all. ..." | Read more » over 1 year ago
"Hi Jeff, I was not aware of these technologies. Thanks for bringing them to my attention. Jack " | Read more » over 1 year ago




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