In a previous post, I was told that it would not be possible to measure pH and ppt in the same container, since the pH probe is very sensitive to the currents generated by the ppt electrodes.
I decided to control the power supply of the boards from the esp pins, which can control the output.
As a result, the telemetry network is assembled in order with long pauses between switching on the boards.
So far, pH measurements in the tank and outside the tank have shown a close result, I will continue to test.
by Dangerous_Ice_6627
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