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JSummers 107 research notes and wiki edits



Automating valves using a magnetic position sensor.

by JSummers over 1 year ago | 2 | 948 | 3

This is a part of our bigger program in laboratory automation. We published an earlier research...

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Pencil lead works well as an electrode material in lead analysis

by JSummers over 1 year ago | 0 | 1,689 | 7

This was a test to see if pencil lead can be used as an electrode material in electrochemical le...

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GUI code for connecting your computer to your microcontroller.

by JSummers over 1 year ago | 0 | 1,670 | 2

This research note is one in a series that is intended to help people start writing code for gra...

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Improved top seal for homemade reference electrodes.

by JSummers over 1 year ago | 0 | 1,957 | 2

In an earlier research note (found [here](http://publiclab.org/notes/JSummers/01-09-2014/potenti...

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New WheeStat Hardware

by JSummers almost 2 years ago | 1 | 2,636 | 2

As outlined in an earlier research note ([here](http://publiclab.org/notes/JSummers/06-19-2015/b...

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Booster hardware improves the usable WheeStat voltage range.

by JSummers about 2 years ago | 0 | 1,811 | 0

The WheeStat hardware does not provide sufficient voltage to the Counter electrode (sometimes ca...

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Datalogging, Part 3: GUI software for handling files

by JSummers about 2 years ago | 0 | 1,984 | 2

This note documents some code that I wrote to improve the feel of working with the graphic user ...

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Valve automation for laboratory liquid handeling

by JSummers over 2 years ago | 1 | 2,290 | 2

Eventually, I want to automate all kinds of lab processes. To do that you not only have to be a...

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Syringe pump mechanicals.

by JSummers over 2 years ago | 2 | 4,385 | 4

This research note will eventually tell you how to build a pretty reliable and accurate syringe ...

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Titraumatic: An apparatus for automated pH titration.

by JSummers over 2 years ago | 0 | 2,867 | 4

This research note documents our progress to interface a syringe pump with a pH meter. This ins...

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Toward calibrating H2S sensors.

by JSummers over 2 years ago | 1 | 3,101 | 8

Up front, I want to make clear that we have not gotten down the road very far on this project, m...

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DIY cold brewed coffee maker

by JSummers over 2 years ago | 6 | 3,679 | 5

I want to roll out of bed and have a cup of good coffee, and I mean now, dammit! OK, there ar...

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Datalogger part 2a; Generating a signal, amplifying it, and displaying the data.

by JSummers almost 3 years ago | 6 | 2,252 | 1

I just finished writing a research note (found [here](http://publiclab.org/notes/JSummers/09-23-...

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Datalogger part 2b, simpler hardware, some observations about ion selective electrodes, and RAM.

by JSummers almost 3 years ago | 0 | 2,174 | 2

This note follows up on an earlier note found [here](http://publiclab.org/notes/JSummers/04-09-2...

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SE Regional Meeting of the Amer. Chem. Soc.

by JSummers almost 3 years ago | 2 | 1,193 | 1

I want to sell WheeStats to all the chemistry departments in the southeast. I will be presenti...

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Atlanta Maker Faire

by JSummers almost 3 years ago | 1 | 1,136 | 1

I will be presenting material published on the Public Lab site to the good people of Atlanta. ...

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WheeStat kit assembly

by JSummers almost 3 years ago | 15 | 4,760 | 3

This note describes the WheeStat kit and how to put it together. More information on the WheeSt...

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Getting your WheeStat set up.

by JSummers about 3 years ago | 12 | 5,972 | 7

This research note is intended to explain how to setup a WheeStat potentiostat. **Install Driv...

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DataLogger: Part 2, Hardware design

by JSummers over 3 years ago | 2 | 3,327 | 2

This research note was begun in April, 2014 to allow data logging using commercially available p...

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Quantifying Airborne Hydrogen Sulfide

by JSummers over 3 years ago | 5 | 3,808 | 6

Jack Summers, Alexandra Shuey and Taylor Royalty The goal of our project was to develop a low ...

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Potentiostat Notes 5: How to make low cost electrodes.

by JSummers over 3 years ago | 10 | 16,575 | 2

This note reviews some basics about electrodes and discusses how you can make your own at low co...

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Potentiostat Notes 4: Fabrication made easy

by JSummers over 3 years ago | 11 | 3,557 | 3

In my last Potentiostat note (found [here](http://publiclab.org/notes/JSummers/12-30-2013/potent...

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Potentiostat Notes 3a; Timing de-bugged

by JSummers over 3 years ago | 3 | 2,939 | 1

In Potentiostat Note 3, we described a bug in the timing of the WheeStat 5.1 software that intro...

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Potentiostat Notes-3; WheeStat 5.1 Fabrication

by JSummers over 3 years ago | 4 | 6,111 | 3

This research note follows up on two earlier notes and describes how we make the 3.3 volt versio...

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Potentiostat Notes 2: Software

by JSummers over 3 years ago | 18 | 4,468 | 1

We are working to develop laboratory instrumentation for education and environmental monitoring....

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Conductivity meter

by JSummers over 3 years ago | 2 | 5,563 | 3

The plan here was to come up with something that would log water levels as the storm surge from ...

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DataLogger

by JSummers over 3 years ago | 1 | 3,602 | 3

I want a simple graphic user interface (GUI) to log data with Arduino / LaunchPad type microcont...

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Potentiostat Notes-1, WheeStat history

by JSummers over 3 years ago | 4 | 5,756 | 2

This note describes some recent development work on potentiostat, an instrument that measures cu...

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SyringePump 2.3

by JSummers almost 4 years ago | 5 | 4,241 | 3

I want to develop a syringe pump that can be made by anyone with minimal tools and skills. Many...

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