Observed arrival · 2026-09-23
Umpire Clicker: an electronic baseball indicator
A personal engineering project that adds electronic position-reading and Wi-Fi scoreboard updates to a familiar handheld umpire clicker.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Baseball umpires and scoreboard operators
- Worth noticing
- The circuit detects a wheel moving between detents so an intermediate position is not sent as a valid count.
Field notes
The documented assembly uses steel pins for the wheel axes, with the stated aim of avoiding wear from plastic pins. The board is shaped to fit the enclosure, and its gold-finished contact areas serve as both electrical and mechanical surfaces. The page also lists 129 automated checks, but the extract does not show their results.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue