Initial commit — Amirine Cosplay Lights

Arduino Uno + WS2812B LED strip controller with a text-based lightshow
system. Shows are defined as .txt files (hex color + fade duration per step),
converted to PROGMEM headers by convert_all.py, and navigated at runtime
via a debounced button (tap/double-tap/hold). BSD 2-Clause license.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

converter/shows/blue_pulse.txt

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+// Blue pulse — home / reset show (always index 0)
+// A slow, gentle breathing effect in deep blue.
+// Loops continuously as the default show.
+//
+// Format: #RRGGBB, duration_ms
+
+#050025,    0   // snap to dim blue — sets the starting point
+#2828FF, 3000   // slow breathe up to bright blue
+#050025, 3000   // slow breathe back down to dim

converter/shows/example_fade.txt

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+// Example: slow color cycle
+// Smooth fades between colors with different speeds.
+//
+// Format: #RRGGBB, duration_ms
+// duration_ms = time to fade FROM the previous color TO this one.
+
+#FF0000,    0   // snap to red immediately
+#00FF00, 3000   // 3 second fade to green
+#0000FF,    0   // snap to blue
+#FF00FF, 2000   // 2 second fade to purple
+#FF8000, 1000   // 1 second fade to orange
+#000000, 5000   // 5 second slow fade to off

converter/shows/example_party.txt

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+// Example: party mode — rapid color flashes
+//
+// Trick: to HOLD a color for N ms, add a second step with the same color
+// and set that step's duration to N. The "fade from red to red" is invisible.
+//
+// Format: #RRGGBB, duration_ms
+
+#FF0000,    0   // snap to red
+#FF0000,  150   // hold red 150ms
+#FF8800,    0   // snap to orange
+#FF8800,  150   // hold orange 150ms
+#FFFF00,    0   // snap to yellow
+#FFFF00,  150   // hold yellow 150ms
+#00FF00,    0   // snap to green
+#00FF00,  150   // hold green 150ms
+#00FFFF,    0   // snap to cyan
+#00FFFF,  150   // hold cyan 150ms
+#0000FF,    0   // snap to blue
+#0000FF,  150   // hold blue 150ms
+#FF00FF,    0   // snap to magenta
+#FF00FF,  150   // hold magenta 150ms
+#FFFFFF,    0   // snap to white
+#FFFFFF,  150   // hold white 150ms
+#000000,  500   // fade to off — brief pause before looping

converter/shows/example_pulse.txt

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+// Example: slow red pulse / heartbeat effect
+//
+// Fades from dim red to bright red and back, repeating.
+// Shows how to create an organic-feeling breathing effect.
+//
+// Format: #RRGGBB, duration_ms
+
+#200000,    0   // start at dim red (no fade — sets the initial state)
+#FF0000, 1200   // fade up to bright red
+#200000, 1200   // fade back down to dim red