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>

arduino/cosplay_lights/config.h

@@ -0,0 +1,47 @@
+#pragma once
+// SPDX-License-Identifier: BSD-2-Clause
+
+// ============================================================
+// Hardware Configuration — Amirine Cosplay Lights
+// Adjust these values to match your physical setup.
+// ============================================================
+
+// -- LED strip type ------------------------------------------
+// Uncomment the line that matches your strip.
+// Full list: https://github.com/FastLED/FastLED/wiki/Chipset-reference
+#define LED_TYPE    WS2812B   // NeoPixel — most common, single data wire
+// #define LED_TYPE APA102   // Dotstar — requires data + clock wire
+
+// -- Color order ---------------------------------------------
+// WS2812B is almost always GRB. If your colors look wrong, try RGB.
+#define COLOR_ORDER GRB
+
+// -- Wiring --------------------------------------------------
+// Pin on the Arduino connected to the strip's DIN (data-in).
+#define LED_DATA_PIN  6
+
+// Clock pin — only needed for APA102/SK9822 strips.
+// #define LED_CLOCK_PIN 7
+
+// -- Strip size ----------------------------------------------
+// Total number of LEDs in your strip.
+#define NUM_LEDS  60
+
+// -- Brightness ----------------------------------------------
+// 0 (off) to 255 (full). Keep at or below 180 to limit heat and
+// current draw, especially when powered from USB.
+#define MAX_BRIGHTNESS  150
+
+// -- Button --------------------------------------------------
+// Pin connected to one leg of the navigation button (other leg to GND).
+// Uses INPUT_PULLUP — no external resistor needed.
+//   1 tap  → next show
+//   2 taps → previous show
+//   hold   → reset to show 0 (blue pulse)
+#define BUTTON_PIN  2
+
+// -- Active pattern ------------------------------------------
+// Controls how the current color is mapped to the LEDs.
+// Only PATTERN_SOLID is included; see DETAILS.md for adding more.
+#define PATTERN_SOLID  0
+#define ACTIVE_PATTERN PATTERN_SOLID