feat: rewrite NeoPattern example

examples/neopattern/NeoPixelConfig.h

@@ -0,0 +1,45 @@
+#ifndef __NEOPIXEL_CONFIG__
+#define __NEOPIXEL_CONFIG__
+
+#include <ArduinoJson.h>
+
+struct NeoPixelConfig
+{
+    // Configuration constants
+    static constexpr int DEFAULT_PIN = 2;
+    static constexpr int DEFAULT_LENGTH = 8;
+    static constexpr int DEFAULT_BRIGHTNESS = 100;
+    static constexpr int DEFAULT_UPDATE_INTERVAL = 100;
+    static constexpr int DEFAULT_COLOR = 0xFF0000; // Red
+
+    int pin = DEFAULT_PIN;
+    int length = DEFAULT_LENGTH;
+    int brightness = DEFAULT_BRIGHTNESS;
+    int updateInterval = DEFAULT_UPDATE_INTERVAL;
+    int defaultColor = DEFAULT_COLOR;
+
+    NeoPixelConfig() = default;
+    
+    NeoPixelConfig(int p, int l, int b, int interval, int color = DEFAULT_COLOR)
+        : pin(p), length(l), brightness(b), updateInterval(interval), defaultColor(color) {}
+
+    void mapJsonObject(JsonObject &root) const
+    {
+        root["pin"] = pin;
+        root["length"] = length;
+        root["brightness"] = brightness;
+        root["updateInterval"] = updateInterval;
+        root["defaultColor"] = defaultColor;
+    }
+    
+    void fromJsonObject(JsonObject &json)
+    {
+        pin = json["pin"] | pin;
+        length = json["length"] | length;
+        brightness = json["brightness"] | brightness;
+        updateInterval = json["updateInterval"] | updateInterval;
+        defaultColor = json["defaultColor"] | defaultColor;
+    }
+};
+
+#endif