JSummers 31 research notes and 56 wiki edits | Joined over 5 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 | 2,763 views | 1





Syringe pump mechanicals.

by JSummers over 4 years ago | 2 | 4,786 views | 4



Toward calibrating H2S sensors.

by JSummers over 4 years ago | 1 | 3,212 views | 5


DIY cold brewed coffee maker

by JSummers over 4 years ago | 6 | 3,931 views | 4




SE Regional Meeting of the Amer. Chem. Soc.

by JSummers over 4 years ago | 2 | 1,286 views | 1


Atlanta Maker Faire

by JSummers over 4 years ago | 1 | 1,225 views | 1


WheeStat kit assembly

by JSummers almost 5 years ago | 15 | 5,147 views | 3


Getting your WheeStat set up.

by JSummers almost 5 years ago | 13 | 6,794 views | 6


DataLogger: Part 2, Hardware design

by JSummers about 5 years ago | 2 | 3,456 views | 2


Quantifying Airborne Hydrogen Sulfide

by JSummers about 5 years ago | 5 | 288 views | 6



Potentiostat Notes 4: Fabrication made easy

by JSummers over 5 years ago | 11 | 3,662 views | 3


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

by donblair almost 5 years ago | 5 | 1,436 views | 1

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

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Quantitative analysis of wood moisture

MarcioPamplona asked about about 1 year ago

Answers

answered on Mar 18, 2018 2

answered on Mar 18, 2018 2

answered on Mar 18, 2018 2

answered on Mar 19, 2018 3

answered on Mar 19, 2018 0

answered on Mar 19, 2018 0

Show all 6 answers »

Hi I'd like to know more on this project

Droopas asked about over 1 year ago

Answers

What is my potential all over the place?

Greg_H asked about over 1 year ago

Answers

answered on Jan 11, 2018 0

answered on Jan 11, 2018 0

answered on Jun 07, 2018 0

Show all 3 answers »

please tell me

Abdulhakeem0801 asked about over 1 year ago

Answers

View these maps at MapKnitter.org »

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Comments

Comment Last activity Moderation
"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 » 11 months 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 » 11 months 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 » 12 months 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 » 12 months 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 » about 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 » about 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
"Hi, I just checked the software with Windows 10 and it seems to work fine. When I click the "save_run" button it opens a dialog box that allows yo..." | Read more » over 1 year ago
"Hi, For the hardware you made, use the firmware here:https://github.com/SmokyMountainScientific/D_SeriesWheeStatFirmware/tree/master/WheeStat6_d. ..." | Read more » over 1 year ago
"Hi @momosavar, The WheeStat will run with about any rail-to-rail quad op amp that works with a 3.3 volt supply and comes in the 14-SOIC package. ..." | Read more » over 1 year ago
"Hi @momosavar, it uses the ek-tm4c123gxl. The voltage range of the model 5 potentiostat is limited to +/- 1.65 volts. The newer model 7 will go t..." | Read more » over 1 year ago
"Hi Aneesahmad, In the US, you can order one from my website, smokymtsci.com. Outside the US, you can contact me at my email summers at wcu dot edu..." | Read more » about 2 years ago
"Hi @TUtam, I am not entirely up on this project but am somewhat familiar with Processing and am wiling to help. I downloaded the WheeTrometer GUI ..." | Read more » almost 3 years ago
"Thanks Chris, I don't expect that anyone will be making much money off of open-source science stuff. I see this as more of a service to my discipl..." | Read more » about 3 years ago
"Hi Ivan, I will be happy to help you with this. Did you want to make a WheeStat or were you decided on using Arduino. The WheeStat was designed u..." | Read more » over 3 years ago
"Neat idea, but ... Perhaps I dont understand what you are trying to do, but getting a spectrum is measuring multiple wavelengths of light and laser..." | Read more » over 3 years ago
"That seems reasonable. I don't know whether the gel-ceramic junction will be an issue or not. My guess is that it will not be a problem. If it i..." | Read more » over 3 years ago




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