first commit

lib/LedMatrix/library.json

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+{
+  "name": "BlinkLed",
+  "version": "1.0.0",
+  "description": "A simple LED control library with internal LED helper.",
+  "authors": [{ "name": "TiiJay14" }],
+  "frameworks": "arduino"
+}

lib/LedMatrix/src/LedMatrix.cpp

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+#include "LedMatrix.h"
+
+LedMatrix::LedMatrix(uint8_t h, uint8_t w)
+    : height(h), width(w), num_leds(h * w), leds(num_leds)
+{
+    addLeds<WS2812B, MATRIX_PIN, RGB>(leds.data(), num_leds);
+}
+
+LedMatrix::~LedMatrix()
+{
+}

lib/LedMatrix/src/LedMatrix.h

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+#ifndef LEDMATRIX
+#define LEDMATRIX
+
+using namespace std;
+
+#include <Arduino.h>
+#include <FastLED.h>
+#include <vector>
+
+#include <font_5x7.h>
+
+class LedMatrix : public CFastLED
+{
+private:
+    uint8_t height;
+    uint8_t width;
+
+    static const uint8_t MATRIX_PIN = 28;
+    uint16_t num_leds; // default 64x64 = 4096 LEDs
+    vector<CRGB> leds; // Automatic memory management
+
+public:
+    LedMatrix(uint8_t h = 64, uint8_t w = 64);
+
+    ~LedMatrix();
+
+    void drawPixel(int x, int y, CRGB color)
+    {
+        if (x >= 0 && x < 64 && y >= 0 && y < 64)
+        {
+            int index = y * 64 + x; // Row-major order
+            leds[index] = color;
+        }
+    }
+
+    void drawChar(int x, int y, char c, CRGB color)
+    {
+        const uint8_t *fontData = getFontChar(c);
+        for (int row = 0; row < 7; row++)
+        {
+            uint8_t line = fontData[row];
+            for (int col = 0; col < 5; col++)
+            {
+                if (line & (1 << (4 - col)))
+                {
+                    drawPixel(x + col, y + row, color);
+                }
+            }
+        }
+    }
+
+    // Draw text string
+    void drawText(int x, int y, const char *text, CRGB color)
+    {
+        int cursorX = x;
+        for (int i = 0; text[i] != '\0'; i++)
+        {
+            drawChar(cursorX, y, text[i], color);
+            cursorX += 6; // 5 pixels width + 1 pixel spacing
+        }
+    }
+};
+
+#endif