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Topic: photobioreactor (pbr) - sensors controlled by ARDUINO (Read 236 times) previous topic - next topic

oswaldo urbani filho

May 17, 2017, 11:51 pm Last Edit: May 18, 2017, 05:02 pm by oswaldo urbani filho Reason: Modify my question just to let people know precisely what I really ask!
Hi there! I´m Mechanical Engineer. Electronics knowledge very, very basic!!.

Need to develop a control system to my pbr. Just basic functions for algae growth study, such as:

-Inside reactor temperature, pH, pressure. The three sensors work submersed in whater.

-I also need two solenoid valves to CO2 (carbon dioxid) and Air flow regulation. Both will be exparged inside the reactor.

-There´s also an external artificial lighting system with a LED arrangement. It´s necessary to control and measure light irradiance and make LED turn on-off according to a light/dark programable cycle.

I need to buy such components. Sinse I have an ARDUINO Mega 2560 R3, what are the main characteristics and specifications I need to now about these components in order they be compatible and work well with this board?

I appreciate very much if somebody can give this tip!! Tks Urbani


Please don't bother wasting your precious time looking for the duplicate of this topic, because I've deleted it.
"Pete, it's a fool (who) looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.
I speak for myself, not Arduino.


for solenoids you can use some uln2003 buffer and a fast recovery diode, they will protect your microcontroller from inductive charges, with that you cant easily drive some relays depending of the energetic demand of your actuators, I dont know what sensors do you have in mind but I recommend you to buy only "smart sensors" (they already gives you data processed of what you are sensing).

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