I replaced a $120k bowling center system with $1,600 in ESP32s

Hardware

bowling alley scoring system

SHOW HN2026

2,935points
359comments
#1of 4,366 in 2026
Top 1%of 2026 by points

How HN took it

LovedMost comments that take a side are positive

84 positive, 63 neutral or asking, 1 mixed, 12 critical, out of 160 comments about the project. Thread score +0.51.

Idea: 29 for, 3 againstDocs: 13 for, 0 againstPricing: 4 for, 4 againstDesign: 3 for, 2 againstExecution: 1 for, 3 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Inspiring retrofit of expensive proprietary systems

    From 2 comments
    • I nominate this post as an archetypal example of content that belongs on the Hacker News site. Thank you for sharing; I'm so glad for you that it worked out.
      mcherm on HN
    • I love seeing software engineering applied to physical systems. Replacing expensive proprietary infrastructure with simple, repairable components feels like the kind of…
      Bisuta on HN
  • Good for community third spaces

    From 2 comments
    • Is there a URL I can send people? I would like to show this to an OG in the pro circuit who has been looking to buy an alley and modernize it but is being dissuaded by the exact…
      monster_truck on HN
    • I love stories like this. You’re doing more for your community than you even know!
      gonzogato on HN

Objections

  • Reliability and downtime concerns

    From 1 comment
    • Short repairs are always nice, but I'm curious about the frequency. You're your own repairman, but that won't be true for all owners. So it's not if the repair takes 5 minutes,…
      hinkley on HN
  • Safety concerns around pinsetters

    From 1 comment
    • I am compelled to ask: Can this equipment take someone’s arm off? Do you have insurance for that? Does you insurance know you wrote this yourself?
      lowbloodsugar on HN

Requests

  • Technical write-up or blog with details

    From 3 comments
    • Hi, What you accomplished here sounds interesting, both from an entrepreneurial point of view and also from the engineering side. A good, nice, detailed technical write-up of…
      Cheiree on HN
    • I came for a blog with pictures and details on the development and found none :( Edit: I had yo search for this on my own…
      Copenjin on HN
    • Professional techie and amateur bowler here. I am bowling on old-ish lanes, and the stats we have beyond the score is... well, ball speed only. And it barely works on half of the…
      alentred on HN
  • Photos or videos of prototype

    From 1 comment
    • Amazing post. I'm a enthusiastic bowler myself and in tech so this scratches both of those itches. These are the types of posts that keep me coming back to HN. Best of luck and…
      jmpavlec on HN

Questions

  • Which sensors are used for pin detection

    From 1 comment
    • I’m curious what sensors you’re using? My first thought was a camera up above the pins pointing down that can detect them. There are probably more reliable methods. If it were…
      codazoda on HN
  • Is the system needed versus paper scoring

    From 1 comment
    • Serious and maybe stupid question, also note I don't live in the US. Is this really needed? If you put a scoring pad and a couple pencils in each lane would your customers say…
      dn3500 on HN

Alternatives named

  • ScoreMore software

    From 1 comment
    • Lol, nice! It depends on what you mean by "owning a bowling center," but it looks like there are at least two of us into this :D I bought a really old fully mechanical (and…
      vikbez on HN
  • Brunswick A2 systems

    From 1 comment
    • That is awesome. I worked at a bowling alley as a mechanic in high school (Brunswick A2) and got a sense of how stupid expensive the replacement equipment was. At one point…
      starky on HN

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