Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
File:Keyboard usb host shield arduino.JPG - Wikimedia Commons
USB Host - Keyboard to ASCII Converter
H. Stamm-Wilbrandt on 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
Keyboard simulator | Arduino usb keyboard | Arduino simulator for pc | ELECFREAKS - Blog
HID support for USB Host Shield Library 2.0 released « Circuits@Home
USB HID
Connect a USB Keyboard with an Arduino - Hackster.io
KVM Uses Many Arduinos | Hackaday
Overview | USB NeXT Keyboard with an Arduino Micro | Adafruit Learning System
Arduino AVR C++: Simple USB HID multimedia keyboard based upon standard keyboard class - Stack Overflow
Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
Overview | USB NeXT Keyboard with an Arduino Micro | Adafruit Learning System
Portenta H7 as a USB Host | Arduino Documentation | Arduino Documentation
USB to USB keyboard converter build log(Pro Micro 3.3v with mini host shield)