Well, the main problem is when the sensor is under water the max value is 58% (it should be 100%)
How can I calibrate that value? Thanks
That sensor returns an analog value, so the conversion to percent is done by your code. You might be doing something wrong there.
BTW, don't expect more than a "dry", "almost wet" and "wet" value from that sensor and don't expect it to last more than a few months.
And if you put that sensor into distilled water your output should be 0%.
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