[Becky] had some PS4 controllers that ... A breadboard and an LED came in handy to figure out which pads corresponded to which buttons on the controller. Replacement joysticks were sourced ...

This is the DTFS LED Kit by eXtremeRate, it's a kit that adds RGB functionality to your PS4 Dualshock 4 controller and it looks incredible. I am really happy with how it turned out and how to install ...