Button Box for PS4

Hi all
I am new to all this and for my first little project I want to try and create a button box for my Playstation 4 and need a helping hand with diagrams and coding, I have no idea where to start or what i will need :frowning:

There are a few people selling button boxes on Ebay with 24 buttons and rotary encodes all they do is when pressed they corresponded with a keyboard letter for 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 many thanks!

You need to use a type of Arduino which can emulate usb devices. Most, like Uno, cannot. I would suggest a Pro Micro.

Then, look at the example sketches in the Arduino IDE. At least one of them emulates a usb keyboard.