USB HID (keyboard, mouse, gamepad) host controller for Tang Nano 20K : r/GowinFPGA
Serial Port to Standard USB HID Keyboard and Mouse Device CH9329 Module DIY | eBay
Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
USB multimedia keys on Arduino STM32 · One Transistor
A USB HID Keyboard, Mouse, Touchscreen emulator with Teensy - CodeProject
Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
Use STM32 as a KEYBOARD || F103C8 || USB Device HID - YouTube
Amazon.com: GOWENIC 6 Keys Mini Keypad, Mechanical Gaming Keypad Wired USB Wireless Bluetooth Dual Mode, OSU HID Keypad DIY Programmable Keyboard, for Office Game Music Gift : Video Games
HID Keyboard of USB Keyboard IC Module Can be Used as Console of Game Computer - AliExpress