So I have a 5v analog ph module and a DF Robot EC meter, both are being read using the " ADS1115: Generic Analog pH/EC" input type. As you know the introduction of the EC meter affects PH, so how are you guys measuring this? Do I have to set it up so the EC meter can be turned on via a GPIO pin with a 2n222 transistor once X amount of time and then polled? Im curious how everyone else is getting around this issue.
The proper way to do this is with an isolator module. See:
Thank you. BTW, I freaking LOVE your software man. I looked for months on what to build and was happy I came across your youtube video.