I was trying to gather some resources on designing an EC sensor that for instance, I could connect to an Arduino board.
I saw many people on YouTube just using two electrodes and some wires and simply connect them to analog pins of the Arduino board. I do not have much knowledge in electronics but it seems to me that this way of building such a sensor is very unreliable and probably requires that you calibrate the sensor quite often.
I understand the principle behind measuring EC: basically measuring the resistance between the two electrodes.
However, I was wondering if there's a "better" way to design such a sensor. I could not find many sources online myself, perhaps anyone who could help me out here?
A schematic would already help.
Thanks a lot!