[Noisebridge-discuss] DO Sensor

[Sean Cusack]

Yeah! The Bio Board is back!!

Mateus - I was working on that a long time ago. The ruthenium complex works
great, the problem is coming up with a way to get an evenly dispersed layer
on a clear, plastic, light enclosed, oxygen transparent substrate. I was
trying to do a thick film on a mylar / PVC bilayer by dissolving the
ruthenium complex in MEK, then allowing the solvent to evaporate. I don't
think the mylar was letting enough O2 in. Also, I was trying to measure
luminosity using a phototransistor via the arduino ADCs...I think something
way more sensitive than that needs to be incorporated to make this a viable
sensor in the end.

Hope that helps -
Sean


On Sat, Jul 13, 2013 at 12:04 PM, Mateus Dornelles <
mateusdornelles at gmail.com> wrote:

> hi, I would like to know the status of the DO probe (
> https://www.noisebridge.net/wiki/BioBoard#Dissolved_oxygen_.28DO.29_probes),
> Did anybody managed to build one at home ?
>
>
> Thanks.
>
>
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