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LAST sensor found — June 12, 2011

Posted by rik94566 in aquaponic automation, aquaponics, arduino, Arduino Your Environment, DIY aquaponics, DO sensor, general, Hacks, indoor aquaponics, indoor gardens, indoor growing, Links, sensor, Sensor Hub, Standards.
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Since I have been on my aquaponic automation quest I have been looking for all the components to make a aquaponic control unit.  Today catching up on my BLOG reading I ran across the last senor I needed to finish the feature set.  It is the DO (dissolved oxygen) sensor.  It is a nice to have functionality and one of the core measurements I want on my dashboard to monitor my aquaponic units.  Finding the sensor in one thing, but to find it and have a reference as to how to connect it up with an arduino is golden.    Now I will have to research out where to buy the sensor and find the time to test it and play with getting it to work.  When I know all there is about the sensor and the code needed to get working, I can then incorporate it into a working controller unit.  Here is the blog reference to the DO sensor.

Dissolved Oxygen Sensor

from Arduino Your Environment by Steve Spence

Looking for a way to detect dissolved oxygen levels? If you raise fish, this and a ph sensor are two important things to monitor (and of course, temperature), and an Arduino is the ideal platform to build upon. The Sensorex DO1200 ($139) outputs a <1mv – 54 mv signal indicating DO levels. Use
analogReference(INTERNAL1V1) to set the top of the input range to 1.1v.

Connect it to one of your analog pins. Very simple to read, just like a potentiometer.Subscribe to Green Trust Sustainability & Renewable Energy by Email

DO Sensor

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Comments»

1. James Liang - July 25, 2012

Hi! It’s a nice project.
I just want to build one,
Can you sent me how pins connected between
Probe and arduino pins by photo?
Do I need any resistance?
I am really appreciate : )

rik94566 - August 2, 2012

James – glad to hear you have a project to work on. I have not completed this project as yet and not seen much work on it either. I gave a reference to Steve Spence’s blog, you might contact him on how he set his up. It looks straight forward as an analog read. Then you will need to calibrate it.
Thanks,

rik


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