Amazon.com: GameSir T4 Mini Gaming Controller for Windows PC/ Android/iPhone/iPad/ Switch , PC Game Controller with Dual-Vibration, USB Bluetooth Gamepad Joystick for Apple Arcade MFi Games, HID-Support Games : Video Games
USB HID Gamepad
Bluetooth HID gamepad using HC-05 module - mitxela.com
u-hid.com
Generic HID - DIY USB HID / Joystick / CNC Pendant
DIY USB HID Joystick Device and Game Controller | MCU on Eclipse
USB HID Mini Keyboard from ATmega 32U4, Joystick and Arduino Sketch - YouTube
Developing Arduino code for HID Joystick « Circuits@Home