I’m looking for an easy to build, not too expensive solution to monitor my swiming pool water quality.
I have read many things on internet and it seems that OPR + Ph are a must have. Temperature would be a plus.
From what I have seen on internet, this project seems to check all the boxes:
@mzakharo: your project is very nice and seem easy to implement. If I understand correctly, your code calculate automaticaly the Chlorine ppm level from ORP and Ph readings, right ?
So from there I will be easy to create a simple automation to control my filtration/electrolyseur.
It is also possible to buy some ready to use products like this one that seem compatible with tuya local integration.
This one is even cheaper than @mzakharo, but I guess the probes quality is different.
Any other interesting project ?
Does anyone has a feedback on durability and fiability of atlas proves vs yieryi solutions ?
It work perfectly under home assistant with Tuya Local integration (be careful there is also a different integration called “local tuya”).
Now we’ll see how long the probe work and how frequently it need a calibration.
As I use it for a swiming pool I will also need to adapt the 4 probes to my filtration system. For that I will use that kind of adapter and a 3D printed cable gland to adapt a 19mm cable (the probe) to the 1 1/4 inch thread.
I plan to print it in ASA and polish it with acetone vapor using a rice cooker (easy and cheap method).