This is an arcade controller project for the MiSTer FPGA project and any other device accepting USB HID joysticks using an Arduino Pro Micro. This project can also be used to create a NeoGeo/Atari/Commodore/Amiga controller to USB adapters.
PLEASE NOTE! This project is open source and was aimed as a DIY alternative to commercial arcade encoders. I kindly ask you not to make a business out of selling arcade encoders using this code. I sell a version with more features in my shop at https://daemonbite.com.
The input lag for an arcade controller or adapter built around this project is minimal. Here is the result from a test with a 1ms polling rate on a MiSTer with this project:
| Samples | Average | Max | Min | Std Dev |
|---|---|---|---|---|
| 13962 | 0.74ms | 1.28ms | 0.23ms | 0.29ms |
The wiring is simple. Connect one leg of each microswitch to GND and the other leg to the digital pin according to the schematic below. That's it!
Blue text in image (silk screen) corresponds to the Bx button numbers in the image for wiring above.
- Download the free Arduino IDE: https://www.arduino.cc/en/main/software
- Connect the Arduino Pro Micro to a USB port and let the drivers install.
- Choose the correct board and virtual COM port in the IDE.
- Compile/Upload the project.