Can Arduino make USB devices? Try using the HID function with Arduino Pro Micro (Leonardo)
Arduino Simulation Computer Keyboard - Blog
USB Host Shield Library, For Connecing Other USB Devices
Connect Arduino UNO to USB Keyboard - Arduino Project Hub
USB keyboard interfacing with Arduino Mega ADK - eclubiitk/EClub-Handbook Wiki
Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
USB Pedal HID Keyboard With Arduino Leonardo : 9 Steps - Instructables
Make a ThinkPad Keyboard USB Adapter With Arduino | Usb adapter, Keyboard, Arduino
Connect a USB Keyboard with an Arduino - Hackster.io
H. Stamm-Wilbrandt a Twitter: ""Re: How to connect #USB #keyboard to #ESP32?" It works, via #Arduino #Due #USBHost adapter and library: https://t.co/IdcwJxEKpV https://t.co/7G5uv7ptqn" / Twitter
The morse code generator by a PS\2 keyboard using Arduino - Use Arduino for Projects
Connect Arduino UNO to USB Keyboard : 5 Steps - Instructables
GitHub - PaulStoffregen/PS2Keyboard: PS/2 Keyboard Library for Arduino
Overview | USB NeXT Keyboard with an Arduino Micro | Adafruit Learning System
How to add extra USB port to Arduino Nano? - Arduino Stack Exchange
Directly connecting USB keyboard for input : r/arduino