Google's Stadia Controller Has the Konami Code Hidden in Plain Sight
Raspberry Pi Pico Keyboard and Gamepad HID with an NES Controller! - YouTube
For PC PS3 Console Arcade Fighting Game Controller USB Joystick Gamepad Joypad | eBay
STM32 USB gamepad interface | Artekit Labs
USB Joystick using Arduino for Robotics and Computer Game - Arduino Project Hub
Amazon.com: 2 Pack SNES Retro USB Super Controller Gamepad Joystick, USB PC Super Classic Controller Joypad Gamestick for Windows PC MAC Linux Raspberry Pi 3 Sega Genesis Higan Grey/Purple : Video Games
DIY USB HID Joystick Device and Game Controller | MCU on Eclipse
avr - Easiest way to create a USB HID device - Electrical Engineering Stack Exchange
STM32 USB gamepad interface | Artekit Labs
For PC PS3 Console Arcade Fighting Game Controller USB Joystick Gamepad Joypad | eBay
Developing Arduino code for HID Joystick « Circuits@Home
Making a USB Game Controller : 6 Steps (with Pictures) - Instructables
Teensyduino: Using USB Joystick with Teensy on the Arduino IDE
Building a Wireless Gameboy Controller (acts as a USB HID Joystick) « insideGadgets
Amazon.com: GameSir G4 Pro Wireless Switch Game Controller for PC/iPhone/Android Phone, Dual Vibrators USB Mobile Gamepad for Arcade MFi Games, Cloud Gaming Controller (Removable ABXY and Screenshot) : Video Games
Finding the VID/PID of your controller
Bluetooth HID gamepad using HC-05 module - mitxela.com
Introducing the Teensy with HID | USB SNES Gamepad | Adafruit Learning System
Using Logitech Extreme 3D Pro joystick with Arduino HID library « Circuits@Home
Accelerometer Controlled Usb Gamepad and Mouse using PIC18F2550 / PIC18F4550 – Starlino Electronics
DIY USB HID Joystick Device and Game Controller | MCU on Eclipse
Amazon.com: Wireless Mobile Game Controller, PXN P30PRO Retractable Low Latency FPS Game Gamepad, USB Plug and Play E-Sports Gamepad for 4-6.67inch (Stretch: 6.5) iPhone | iPad, Android, Samsung Smartphones - Cyan :
USB Joystick Device | Mbed
Generic HID - DIY USB HID / Joystick / CNC Pendant