About pH meter all is there:
But I don't understand how to connect it
Pumps:
1A direct current and brushed motor
And the project will be finished with other three things:
- lowering / picking basket made with two small hydraulic jacks
- solids dosing machine made with stepper motor
- color tester to test the color of the solution (brown/colorless, only 2 colors)
Any ideas how to apply everything?