Engineer creates first custom motherboard for 1990s PlayStation console

The nsOne project joins a growing community of homebrew PlayStation 1 hardware developments. Other recent projects include Picostation, a Raspberry Pi Pico-based optical disc emulator (ODE) that allows PlayStation 1 consoles to load games from SD cards instead of physical discs. Other ODEs like MODE and PSIO have also become popular solutions for retrogaming collectors who play games on original hardware as optical drives age and fail.

From repair job to reverse-engineering project

To understand the classic console’s physical architecture, Brodesco physically sanded down an original motherboard to expose its internal layers, then cross-referenced the exposed traces with component datasheets and service manuals.

“I realized that detailed documentation on the original motherboard was either incomplete or entirely unavailable,” Brodesco explained in his Kickstarter campaign. This discovery launched what would become a comprehensive documentation effort, including tracing every connection on the board and creating multi-layer graphic representations of the circuitry.

Using optical scanning and manual net-by-net reverse-engineering, Brodesco recreated the PlayStation 1’s schematic in modern PCB design software. This process involved creating component symbols with accurate pin mappings and identifying—or in some cases creating—the correct footprints for each proprietary component that Sony had never publicly documented.

Brodesco also identified what he calls the “minimum architecture” required to boot the console without BIOS modifications, streamlining the design process while maintaining full compatibility.

The mock-up board shown in photos validates the footprints of chips and connectors, all redrawn from scratch. According to Brodesco, a fully routed version with complete multilayer routing and final layout is already in development.

As Brodesco noted on Kickstarter, his project’s goal is to “create comprehensive documentation, design files, and production-ready blueprints for manufacturing fully functional motherboards.”

Beyond repairs, the documentation and design files Brodesco is creating would preserve the PlayStation 1’s hardware architecture for future generations: “It’s a tribute to the PS1, to retro hardware, and to the belief that one person really can build the impossible.”

Enhance your driving experience with the P12 Pro 4K Mirror Dash Cam Smart Driving Assistant, featuring Front and Rear Cameras, Voice Control, Night Vision, and Parking Monitoring. With a 4.3/5-star rating from 2,070 reviews and over 1,000 units sold in the past month, it’s a top-rated choice for drivers. The dash cam comes with a 32GB Memory Card included, making it ready to use out of the box. Available now for just $119.99, plus a $20 coupon at checkout. Don’t miss out on this smart driving essential from Amazon!

Help Power Techcratic’s Future – Scan To Support

If Techcratic’s content and insights have helped you, consider giving back by supporting the platform with crypto. Every contribution makes a difference, whether it’s for high-quality content, server maintenance, or future updates. Techcratic is constantly evolving, and your support helps drive that progress.

As a solo operator who wears all the hats, creating content, managing the tech, and running the site, your support allows me to stay focused on delivering valuable resources. Your support keeps everything running smoothly and enables me to continue creating the content you love. I’m deeply grateful for your support, it truly means the world to me! Thank you!