Rack mounted LED matrix 8x96 - WOPR Style

Bring retro charm to your server rack with this 1U 3D-printed LED matrix holder, inspired by the iconic WOPR lighting from WarGames. Designed for the popular MAX7219-based 8x32 modules (arranged in a 3-wide, 8x96 configuration), this mount is a visually striking addition for home lab enthusiasts.

🔧 Features

• Standard 1U Rack Mount: Uses standard M6/M5 rack screws for easy integration into any 19" server rack.
• Secure Fit for MAX7219 Modules: Precisely holds 3 chained 8x32 LED matrix modules (linked below), gripping the PCBs firmly to prevent pop-out — no diffuser needed.
• Modular Design: Prints in multiple parts on a standard printer bed and assembles with M3 countersunk screws. Clean fit.
• WOPR-Inspired Lighting: Prepped for animated light sequences like in WarGames. Use it for ambiance, lab status bling, or just to impress.
• ESP32 Powered: Designed around the ESP32-C5 microcontroller (linked in parts list) — ideal for use with ESPHome and Home Assistant.
• Home Automation Ready: Future-ready for integration with Home Assistant via ESPHome — use it to show alerts, system status, or subscriber counts.

🛠️ Assembly Notes

• This model requires basic hardware: M3 countersunk screws, an ESP32-C5 dev board, and a 3x MAX7219 8x32 LED matrix chain.
• Matrix must be installed before final assembly. Swapping modules later requires disassembly.
• All mounting holes and tolerances are print-ready — minimal cleanup needed.
• PARTS LIST:
  • https://amzn.to/3ULPEFI LED Matris you will need 3 module link is red but you can find them in other colors.
  • https://amzn.to/41lTlpi These are the countersunk screw set I use specifically the m3x5 and M3x6 you can use all m3x5
  • https://amzn.to/4mt0KLQ you will also need some wires to connect it to the matrix unless you get a kit from hackerboxes
• Other relevant Links
  • Hackerboxes kit: https://hackerboxes.com/collections/past-hackerboxes/products/hackerbox-0114-wopr
  • Instructions and firmware: https://www.instructables.com/HackerBox-0114-WOPR/

💡 Use Cases

• Add nostalgic flair to your homelab or server closet
• Display dynamic light animations or ambient lighting
• Integrate with Home Assistant for smart alerts, system status, or sensor feedback (future plans)