JSummers 34 research notes and 59 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 | 203 views | 1





Syringe pump mechanicals.

by JSummers over 4 years ago | 2 | 609 views | 4



Toward calibrating H2S sensors.

by JSummers over 4 years ago | 1 | 147 views | 5


DIY cold brewed coffee maker

by JSummers over 4 years ago | 6 | 372 views | 4




SE Regional Meeting of the Amer. Chem. Soc.

by JSummers over 4 years ago | 2 | 120 views | 1


Atlanta Maker Faire

by JSummers over 4 years ago | 1 | 115 views | 1


WheeStat kit assembly

by JSummers almost 5 years ago | 15 | 637 views | 3


Getting your WheeStat set up.

by JSummers almost 5 years ago | 13 | 1,169 views | 6


DataLogger: Part 2, Hardware design

by JSummers about 5 years ago | 2 | 189 views | 2


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

by donblair almost 5 years ago | 5 | 140 views | 0

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
"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 23 hours 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 » 2 days 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 » 2 days 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 » about 1 month 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 » 5 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 » 5 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 » 5 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 » 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




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