Hardware - IO Rodeo Blog

Hardware

A collection of 9 posts

Archived projects

Hardware Featured

Archived projects

As we move into working on new products, we thought it might be useful to put together a list of all of our archived open hardware products. Most of the projects listed are no longer actively supported, however the documentation contains useful links to design files, BOMs and make instructions.

The pH FeatherWing hardware guide

The pH FeatherWing hardware guide

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 Texas Instrument's

Creating a pH meter using the pH FeatherWing

pH Featherwing Featured

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

Electrophoresis power supply - LCD display

Electrophoresis power supply - LCD display

We have recently updated the electrophoresis power supply [https://iorodeo.com/products/electrophoresis-power-supply] to include an LCD display as shown in the images below. The price of the power supply kits remains the same ($65 for a kit). We also have a fully assembled and ready-to-use power supply option for

Open source potentiostat features

Open source potentiostat features

In this blog post we give a quick overview of some of the main differences between two open source potentiostats: Rodeostat and Cheapstat.

Measuring emission spectra for the blue LED transilluminator

Measuring emission spectra for the blue LED transilluminator

Our blue LED transilluminators [https://iorodeo.com/collections/gel-imaging] use a 470 nm LED array in combination with blue and amber acrylic filters for viewing DNA bands in agarose gels stained with DNA dyes. Images of gels stained with Greenview, GelGreen and others can be seen in previous posts on

IO Rodeo Open Source Potentiostat

IO Rodeo Open Source Potentiostat

We have recently been working on a new potentiostat. The Rodeostat (initally referred to as a potentiostat shield) is an open source potentiostat for performing electrochemical measurements which is designed to work with the teensy 3.2 development board [https://www.pjrc.com/teensy/teensy31.html]. The Rodeostat is easily

Potentiostat dummy cells

electrochemistry

Potentiostat dummy cells

One of our most frequently asked questions on the Forums [http://forum.iorodeo.com/] and via email is how to produce a calibration for the Cheapstat potentiostat. The Cheapstat potentiostat returns measured current values as raw unitless integers read from the ADC (analog to digital converter) at the output of

Using an imaging enclosure for photographing gels

Using an imaging enclosure for photographing gels

Photographing gels is an important step in research projects that involve any kind of visual or quantitative DNA analysis by electrophoresis. Decent gel imaging requires a fairly simple set-up of a light-tight box with a transilluminator, camera and suitable filters. In research, teaching or DIYBio labs, finding a suitable light-tight