Show HN: $120,000 Bowling Center System Swapped for $1,600 of ESP32 Microcontrollers

A Hacker News user posted a project showcasing a cost‑cutting overhaul of a bowling center’s control system. The original system reportedly cost around $120,000 to install and maintain. The user replaced it with a collection of ESP32 development boards. The total expense for the new hardware was about $1,600. The ESP32 boards serve as the core components of the new system. The project demonstrates that low‑cost hardware can replace expensive proprietary solutions. The author shared schematics and code on the Show HN post for community review. Observers may consider similar approaches for other high‑cost equipment upgrades.