Customizable gamepad makes for the perfect introduction to Arduino - ExtremeTech
USB Joystick using Arduino for Robotics and Computer Game - Hackster.io
Create a Joystick Using the Arduino Joystick Library 2.0 : 12 Steps (with Pictures) - Instructables
Analog JoyStick with Arduino - Tutorials
Arduino - Joystick | Arduino Tutorial
Arduino Joystick Experiment
Video Game Controller With Arduino : 6 Steps (with Pictures) - Instructables
Reading data from usb gamepad to control arduino. - Project Guidance - Arduino Forum
Arduino Joystick Shield
GitHub - jamhamster/12-Button-Arduino-Gamepad: Code to create a 12 button Joypad using the Arduino Joystick library https://github.com/MHeironimus/ArduinoJoystickLibrary
Making DIY game controller - Arduino gamepad TUTORIAL - YouTube