Engineer Replaces $120K Bowling Scoring System With $1,600 DIY ESP32 Build

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A site reliability engineer who purchased an eight-lane bowling center in a small Midwestern town for $105,000 was quoted $120,000 to replace its outdated 2008-era scoring system — more than the building itself cost. The engineer, known online as section33, instead built an open-source alternative called OpenLaneLink for approximately $1,600 total, bringing each lane pair online for around $200. The system uses ESP32 microcontrollers as lane nodes communicating over an ESP-NOW mesh network, with a Raspberry Pi serving as the lane computer and a React frontend for scoring displays. OpenLaneLink handles ball speed tracking, pin detection, foul-line monitoring, and pinsetter control — matching the functionality of the proprietary system it replaced. The project is planned for release as fully open-source hardware, firmware, and software, making it available for others to study and deploy.

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