Atari 7800 Joystick to Sega Master System Adapter
author: 0x15e
2 layer board of 1.54 x 0.60 inches (39.1 x 15.1 mm)
Uploaded:
April 05, 2021
Shared:
May 11, 2022
Total Price:
$4.55
Converts the active-high button outputs and moves some pins around, allowing an Atari 7800 Proline stick or gamepad to work as a Sega Master System controller. This is particularly useful if you want to use it with a USB adapter such as the Daemonbite Sega adapter.
BOM: R1,R2: 1.8K R3,R4: 270 Q1,Q2: 2n4401 NPN transistor
The connectors are typical solder cup DE9 male / female and are attached by straddling the pins on either side of the board. This adapter is intended to fit perfectly inside a DE9 gender changer hood.
This project is released under the CC0 1.0 Universal license.
Project files and assembly instructions are available in the GitHub repo.
Converts the active-high button outputs and moves some pins around, allowing an Atari 7800 Proline stick or gamepad to work as a Sega Master System controller. This is particularly useful if you want to use it with a USB adapter such as the Daemonbite Sega adapter.
BOM: R1,R2: 1.8K R3,R4: 270 Q1,Q2: 2n4401 NPN transistor
The connectors are typical solder cup DE9 male / female and are attached by straddling the pins on either side of the board. This adapter is intended to fit perfectly inside a DE9 gender changer hood.
This project is released under the CC0 1.0 Universal license.
Project files and assembly instructions are available in the GitHub repo.
