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pH FeatherWing Hardware

pH FeatherWing Hardware

The pH FeatherWing [https://iorodeo.com/products/phfeatherwing] is a single channel pH electrode amplifier based on Texas Instrument's LMP7721 [http://www.ti.com/lit/ds/symlink/lmp7721.pdf] ultra low input bias current (3 fA) precision operational amplifier. The design of the pH electrode amplifier closely follows

Creating a pH meter using the pH FeatherWing

Creating a pH meter using the pH FeatherWing

In this blog post we demonstrate how to create a pH meter using the pH FeatherWing, an Adafruit Feather M4 Express and a few additional components. The meter will display a continuous readout of the current pH and can be calibrated, via button press, at pH values of 4, 7

New Rodeostat Model-8V available

New Rodeostat Model-8V available

We are happy to announce that we have a new Rodeostat model available - the Rodeostat Model-8V. The Rodeostat Model-8V has output voltage ranges of +/- 1, 2, 4, and 8V. Whereas the original Rodeostat, the Model-10V, has output voltage ranges of +/- 1, 2, 5, and 10V. Other than

Bismuth modified carbon paste electrode for metal measurements

Bismuth modified carbon paste electrode for metal measurements

In the experiments described in this blog post, we made a bismuth modified carbon paste electrode for detecting heavy metals, lead and zinc, using square wave anodic stripping voltammetry and the Rodeostat potentiostat. This is a continuation of our experiments using electrochemistry to measure lead and other heavy metal pollutants

Rodeostat Web App Software

Rodeostat Web App Software

Software for IO Rodeo's open source potentionstat is now available. The software provides a user friendly graphical interface. The software, written in javascript, runs in a web browser and allows the user to configure test parameters, visualize test results and save data. Requirements * Serialport-bridge: Before using the Rodeostat

Serialport-bridge Software

Serialport-bridge Software

Serialport-bridge is a computer program which gives javascript applications running in your web browser the ability to access and control USB/Serial devices connected to your computer. This software was developed by IO Rodeo in order to enable the distribution of application software as simple web pages. Before you can

Making a carbon paste electrode

Making a carbon paste electrode

In this blog post we describe making a DIY carbon paste electrode using graphite powder/mineral oil mix and a custom-made reusable holder.