History

MickGyver 1015f20cd3 Small change to Sega two controller adapter wiring. Small change to Sega two controller adapter wiring. Wiring diagrams added for Sega two controller adapter and NES/SNES adapters.		2020-03-02 11:24:26 +02:00
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images	Small change to Sega two controller adapter wiring.	2020-03-02 11:24:26 +02:00
Gamepad.cpp	Empty serial without the need to edit system libraries	2020-02-13 18:53:51 +02:00
Gamepad.h	Empty serial without the need to edit system libraries	2020-02-13 18:53:51 +02:00
README.md	Small change to Sega two controller adapter wiring.	2020-03-02 11:24:26 +02:00
SegaControllers32U4.cpp	Small change to Sega two controller adapter wiring.	2020-03-02 11:24:26 +02:00
SegaControllers32U4.h	Small change to Sega two controller adapter wiring.	2020-03-02 11:24:26 +02:00
SegaTwoControllersUSB.ino	Small change to Sega two controller adapter wiring.	2020-03-02 11:24:26 +02:00

README.md

DaemonBite Sega Controllers To USB Adapter

Introduction

This is a simple to build adapter for connecting two Mega Drive (Genesis), Master System (+ Atari and C= controllers) to USB. It supports 3 and 6-button Mega Drive controllers and 1 and 2-button SMS/Atari/C= controllers.

The input lag for this adapter is minimal. Here is the result from a test with a 1ms polling rate on a MiSTer (one port version):

Controller	Samples	Average	Max	Min	Std Dev
Original 3-Button Mega Drive Controller	2342	0.75ms	1.28ms	0.24ms	0.29ms
8bitdo M30 Wireless 2.4G	2348	4.54ms	8.05ms	2.22ms	1.31ms

Parts you need

Arduino Pro Micro (ATMega32U4)
2x Male end of Mega Drive controller extension (or DSUB 9Pin Male connectors and some wires)
Heat shrink tube (Ø ~20mm)
Micro USB cable

Wiring

License

This project is licensed under the GNU General Public License v3.0.

Credits

The Mega Drive gamepad interface is based on this repository : https://github.com/jonthysell/SegaController but almost entirely rewritten and a lot of optimisations have been made.