So I dived into the Arduino software as it seems that when trying to read from the connected sensors something goes terribly wrong.
If I comment everything out and let only the pH and EC sensor module to load the output I’m getting is: 0 for everything for a while until it turns into an Unknown error.
When only connecting the CO2 - everything works, but when I connect the temp and humidity sensor as well, the MHZ16 fails to initialize so no data from the sensors.
Just these four sensors together (I commented the others out so I can focus on these) - give a bunch of errors and don’t work together.
I tested all sensors separately with the Arduino - they all work. All sensors are from the BOM.
Here is a photo of them connected:
Any ideas what’s happening?