Nano as Keyboard

Hi all I am in the Process of creating a button box for my Playstation 4 and need a helping hand with diagrams and coding for a my arduino.

I have 6 buttons and when pressed I want them to resemble a keyboard letter Eg K, G, F ,then once its plugged into the PS4 it thinks it's a standard keyboard

I really dont know where to start on how to wire this up or the coding needed :(

"Nano as Keyboard" will not work easily, if at all. The USB to serial chips used in all Nanos I'm aware of are not capable of HID functionality.

Get a Micro/Leonardo or a smaller controller with the same chip.

There are many threads about wiring and evaluating buttons, the IDE has some examples (state change detection, digtal I/O, keyboard library).