- You will need one Atmega32u4 (e.g. Arduino Leonardo).
- Two DB9 ports, better if you find a 90º version.
- Original Mega Drive Controller
- Follow step by step the how-to
Long version
- Use the file RetroJoystickAdapter_Megadrive.ino, comment the fist set of pins, and uncomment the second that says
// if you use two DB9 connectors solded back to back on your ATmega32u4, you should use this inputs
.
You should print this schema to guide you during the soldering process.
Here are Adriano's examples of his assembly.
Here are the Jarno's examples of his assembly.