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NES Retroachievements Adapter (Board 2)
What’s it about?
This is an open-source hardware adapter that brings online achievements (like Xbox or PlayStation trophies) to the original NES console, working with physical cartridges and no console modifications.
Why did I decide to make it?
I’m a retro gaming enthusiast who loves mixing old-school hardware with modern technology. While achievements have been available in emulators through the RetroAchievements platform, there was no existing solution for real NES consoles. So, I challenged myself to make it happen!
How does it work?
- The adapter fits between the NES and the cartridge, using two microcontrollers (ESP32 + Raspberry Pi Pico) working together.
- The Pico monitors the memory bus in real time, detecting achievement conditions.
- The ESP32 handles Wi-Fi, a tiny LCD display, and online communication with RetroAchievements.
- As you play, achievements unlock and sync to your online RA profile — just like on modern consoles.
See more!
Check out images, videos, firmwares and source code on GitHub:
NES Retroachievements Adapter (Board 2)
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
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