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DaemonBite-Retro-Controller.../SegaTwoControllersUSB/README.md
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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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

Assemble1

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.