Some Arduinos, eg Leonardo, can act as USB input devices for PCs etc, emulating mice, keyboards etc.

Where the Arduino board does the USB processing on the main chip rather than having a separate USB controller chip, it can be made to emulate USB input devices to a host PC.

• V-USB - a software USB device for Atmel’s AVRs
• Add extra USB port to Arduino

• Keyboard emulation

• PS2Keyboard Library
• Extension of the original PS2Keyboard library
• Alternate PS2Keyboard Library
• Arduino PS2 Keyboard FULL keyboard protocol support and full keys to integer coding
• Details of the PS2 Keyboard interface
• Instructables PS2 Keyboard to Arduino
• PS2 Keyboard or Mouse

• Mouse functions
• Joystick Mouse Control

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