Introducing the environmental air quality project
Designing an open source environmental gas sensor device for measuring VOCs
William Dickson
New colorimeter open hardware design expands flexibility
Our open hardware colorimeter is a popular tool for measurements analytes using colorimetric assays. We initially designed the colorimeter as an educational kit in 2012 with Kickstarter funding.
Rodeostat FeatherWing Hardware
Overview
The Rodeostat FeatherWing is a potentiostat expansion board which is designed to be compatible with Adafruit's Feather/FeatherWing system. It is a single channel potentiostat which provides connections for one working, one reference and one counter electrode. It has a +/- 1.65V output range and comes
Making an open source COVID-19 face shield
Like many people, we have been alarmed at the reports of the lack of personal protective equipment (PPE) for healthcare workers on the frontlines of the COVID-19 pandemic. We have been following the work of many individuals and groups on social media making open source PPE as we try to
Rodeostat Multiplexer
The Rodeostat Multiplexer
[https://iorodeo.com/collections/cheapstat-open-source-potentiostat/products/rodeostat-multiplexer-expansion-kit]
is an expansion board for the Rodeostat potentiostat
[https://iorodeo.com/collections/cheapstat-open-source-potentiostat/products/potentiostat-shield]
which enables it to be used with up to seven working electrodes simultaneously.
This is achieved by adding a multiplexing switch to the single working
Rodeostat Muliplexer Kit Assembly
The multiplexer kit
[https://iorodeo.com/products/rodeostat-multiplexer-expansion-kit] is an add-on
accessory for the Rodeostat
[https://iorodeo.com/collections/cheapstat-open-source-potentiostat/products/potentiostat-shield]
which expands the number of working electrodes that can be used with the
Rodeostat from one to seven converting it from a single-channel to a
multi-channel potentiostat. In
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