An FPGA-based USB 1.1 (full-speed) device core to implement USB-serial, USB-camera, USB-audio, USB-hid, etc. It requires only 3 FPGA common IOs rather than additional chips. 基于FPGA的USB 1.1 (full-speed) device端控制器，可实现USB串口、USB摄像头、USB音频、U盘、USB键盘等设备，只需要3个FPGA普通IO，而不需要额外的接口芯片。

A hand-wired USB & Bluetooth keyboard powered by Python and more

USB keyboard/mouse to PS/2 interface converter using a Raspberry Pi Pico

用 Android 设备实现的即插即用 HID 键盘 & 鼠标。

USB keyboard to PS/2 / AT / XT interface converter using a Raspberry Pi Pico

Arduino library to add HID USB keyboard functionality to your projects

Touch Screen USB Keyboard with ESP32 S2 and ESP32 S3 and Arduino

ESP32 USB Host HID Keyboard for Arduino

Arduino USB pass through demos

Convert USB keyboard to Bluetooth LE

USB Keyboard Parser Tool is an automated script that can extract HID data from.pcap or.pcapng files.

DIY MIDI button controller from QWERTY USB keyboard

USB keyboard button box with rotary encoders using Raspberry Pi Pico

Interfaz directa con teclados USB en Verilog con control de los Leds de teclado y conversión a PS/2.

A simple USB sniffer based on Raspberry PI PICO RP2040 (pico-sdk)

A simple 4 Keys USB keyboard for the nRF52840-DK.

Midbar is more than just a password vault! Midbar is designed to significantly increase the cost of unauthorized access to its user's personal data.

Apple Lisa Keyboard Tester/Translator/Emulator

USB keyboard/mouse to PS/2 interface converter using a Raspberry Pi Pico

use a Raspberry Pi 400 as a normal USB keyboard via USB-C