Improve your retro gaming emulation experience by using the systems original controller. This project provides code so you can bring back to life your old controller with native plug-and-play support for Microsoft Windows 7+ and Linux/RetroPie using an ATmega32u4 based Arduino.
Commodore 64/Amiga, Atari 2600/XL/ST, ZX Spectrum, Amstrad CPC, MSX and many others compatible Joystick to USB - https://jfrmilner.wordpress.com/2016/07/17/arduino-project-commodore-64amiga-atari-2600xlst-zx-spectrum-joystick-to-windowslinux-retropie-usb
Sega Master System (SMS) Control Pad to USB - https://jfrmilner.wordpress.com/2016/07/17/arduino-project-sega-master-system-sms-control-pad-to-windowslinux-retropie-usb/
Sega MegaDrive/Genesis controller to USB - https://jfrmilner.wordpress.com/2016/07/17/arduino-project-sega-megadrivegenesis-controller-to-windowslinux-retropie-usb/
Super Nintendo Entertainment System (SNES) Controller/Gamepad to USB - https://jfrmilner.wordpress.com/2016/07/17/arduino-project-super-nintendo-entertainment-system-snes-controllergamepad-to-windowslinux-retropie-usb/
Multijoy Retro Gaming System
With the above experience, I designed a circuit board and selector system so multiple controllers could all be connected and used on one system. The circuit board acts as a shield for an Arduino Micro that expands the available pins to make this possible. I created a quick demo of me playing popular games on this console with each controller. Check it out by clicking the below image..
If you'd like to know more please check out my Blog -https://jfrmilner.wordpress.com/2017/10/16/retro-gaming-system/