| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | almost 7 years ago | |||
| JSummers | "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 » | about 7 years ago | |||
| JSummers | "Hi Jeff, I was not aware of these technologies. Thanks for bringing them to my attention. Jack " | Read more » | about 7 years ago | |||
| JSummers | "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 » | about 7 years ago | |||
| JSummers | "Hi, For the hardware you made, use the firmware here:https://github.com/SmokyMountainScientific/D_SeriesWheeStatFirmware/tree/master/WheeStat6_d. ..." | Read more » | about 7 years ago | |||
| JSummers | "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 » | about 7 years ago | |||
| JSummers | "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 7 years ago | |||
| JSummers | "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 » | almost 8 years ago | |||
| JSummers | "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 » | over 8 years ago | |||
| JSummers | "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 » | over 8 years ago | |||
| JSummers | "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 » | almost 9 years ago | |||
| JSummers | "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 » | almost 9 years ago | |||
| JSummers | "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 » | about 9 years ago | |||
| JSummers | "I never have tried this but I know that it is widely used. Do you have experience with this? Is the gelled electrolyte something that you make or..." | Read more » | about 9 years ago | |||
| JSummers | "Hi @warren, I had never did put the board files online before (Sorry). I just made them available at https://github.com/SmokyMountainScientific/Wh..." | Read more » | about 9 years ago | |||
| JSummers | "@bjl1629 Hi, I made a mistake in the above comment, referring to the Energia code as being a pde file. It is actually an ino file. The GUI progr..." | Read more » | over 9 years ago | |||
| JSummers | "@bjl1629 Hi, This comment addresses the question of sampling frequency and I will discuss the cycling issue in the next comment. The WheeStat is s..." | Read more » | over 9 years ago | |||
| JSummers | "@bjl1629 Hi, The 5.1 board files are the most recent hardware designs released to the wild. This summer I have been working on new hardware (and s..." | Read more » | over 9 years ago | |||
| JSummers | "@bjl1629 Hi, I have never done any EIS and have not gotten into its theoretical or practical aspects. That said, where would we all be if we let ..." | Read more » | over 9 years ago |