Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of 
@walterartavia02gmail-com
Active 5 years, 6 months ago-
fisherba posted a new activity comment 6 years, 4 months ago
Hi @walterartavia02gmail-com, I completely missed this turbidity question. We have used Yosimetech (http://www.yosemitech.com/en/) turbidity sensors, but there’s enough hassle in ordering (customs hang-ups every time) and creating a RS-485 shield to communicate with those, that going with the Campbell sensor might be in my future.
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fisherba posted a new activity comment 6 years, 5 months ago
I haven’t deployed an OBS, but it looks like it goes into the I2C port using the instructions at:
https://github.com/EnviroDIY/ModularSensors#campbell-scientific-obs-3
where it says that, “The power supply is connected to the red wire, low range output comes from the blue wire, high range output comes from the…[Read more]
Beth, thanks for sending Walter the links to the sensor description in the Modular Sensors library ReadMe file! That is a great resource.
One important correction, the Campbell Sci. OBS3+ sensor is an ANALOG sensor, and therefore should be connected to one of the Aux Analog grove ports on the Mayfly’s lower left side. The Auxiliary…[Read more]
Thanks a lot Anthony / Fisherba, I will work on the MayFly and the OBS on the weekend!.