If I open the rar library file, than I see a file called Keyboard.h. I'm sure you need to include Keyboard.h, than the class Keyboard is known and. Contribute to arduino-libraries/Keyboard development by creating an account on GitHub. Arduino Keypad 4x4 Tutorial: Keypad input showed to serial monitor with arduino uno and 4x4 keypad full code. A word of caution on using the Mouse and Keyboard libraries: if the Mouse or Keyboard library is constantly running, it will be difficult to program your board. Install these as ordinary Arduino libraries (see ttcih.org Libraries or our tutorial on Arduino libraries). Keep in mind that this library is designed. You can even program it to act just like a mouse, keyboard or other The goal of this tutorial is to explain how to use the Arduino HID library. Allows an Arduino/Genuino board with USB capabilites to act as a Keyboard. It can be used with or without other HID-based libraries (Mouse, Gamepad etc). I'm trying to use the keyboard library however it seems I don't have the library. I just redownloaded the Arduino IDE, but it doesn't seem to come.