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DIY USB HID Joystick Device and Game Controller | MCU on Eclipse
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
u-hid.com
Bluetooth HID gamepad using HC-05 module - mitxela.com