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Arduino AVR C++: Simple USB HID multimedia keyboard based upon standard keyboard class - Stack Overflow
GitHub - julianschuler/USBKeyboard: Arduino library to add HID USB keyboard functionality to your projects
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Amazon.com: SunFounder FruitKey USB Keyboard DIY Starter Kit Gamepad Control Handle DIY Computer Keyboard, Worked with PC Mac OS X Raspberry Pi for Arduino Uno R3 Leonardo : Electronics
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