How feasible would be to wire a Digital Potentiometer to one of those mechanical POT found on a DC power supply? I use this PSU for anodizing aluminum and would like to automate the calculation for Amp/spf using an Arduino preferably.
If all possible, how would I wire this up to the exiting 5V/Gnd/Wiper pins on the external PSU? Does the Grn needs to be shared between Arduino and the PSU, how would that work.
below is the PSU I’m having, I just need to control the amp POT really. Thanks for any heads up on this little puzzle.