I have made some changes to my PH Sensor project. I moved it off the breadboard and did a bit of clean-up and soldered it on a perf board. Much cleaner with screw down terminals for the external sensors.
One problem that I am having, that I have to resolve is that the probe is stuck on 2.5v. Might be some problems with my wiring. but it could also be the el-cheapo probe. I’ll connect it to an Arduino and retest it outside of my project to see the results.
Here is the device in a saltwater fish pen monitoring PH to make sure the fish are in acceptable levels.
More to come.