I need to start a project where I need to control a water pump that is quite big (driven by a 10A programmable power supply) so I can get a flow of around 10 litres per minute.
At the moment the pump is really inconsistent, with a set current limit the flow rate of the water changes quite a while so I am planning to do a closed-loop PID controller in order to vary the voltage or current of the pump so I can get a more consistent flow rate.
I will be honest, is my first project with Arduino and control so I don't even know if it is achievable with the things I have. The programmable power supply has an rs232 connection so I am thinking to buy a converter from the Arduino to rs232.
Any advice on how to proceed with the control of the system? I will really appreciate it