Jan 9, 2026
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The Beacon That Spelled My Name to Polaris
Morse Beacon Star-Trail LightpaintingA dah is three dits, a letter gap is three dits, and somehow that led to teaching an LED to spell my callsign while Polaris rotated overhead.
code-a-day
Dots, Dashes, and State Machines
Finite State Automata 🔗 Morse Beacon Star-Trail LightpaintingHow Morse beacon timing reveals the elegant mathematics of state transitions.