Universal USB HID GamePad/Keyboard ---------------------------------- A simple board that uses arduino and v-usb libraries to emulate a keyboard or a gamepad. I did this to use with RETROPIE on a Raspberry Pi, in my PiZeroW SP (a raspberry pi zero w in a game boy sp with a 6200mah battery !), but it should work on any systems (windows, mac, linux) You can use up to 14 buttons or 10buttons and 2 joysticks. Inputs can be externally pulled high by soldering the optional 10k resistors next to them. /!\Use an AtMega328p already burned with Arduino Bootloader ([How To Burn Arduino Bootloader ?][1]) ---------- Upload sketches with an arduino uno (take off the chip on the uno first): - **Board------>   Uno** - +5v-Uno---> +5v - RST----------> Reset - RX-----------> RX - TX-----------> TX - GND-Uno--> GND ---------- Connect USB cable: - GND to GND(Black wire) - D+ to D+(Green wire) - D- to D-(White wire) - +5v to +5v(Red wire) ---------- ![A preview of the board][2] [1]: https://www.arduino.cc/en/Tutorial/ArduinoToBreadboard [2]: /editor/20170418/58f57910b0d4b.png