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‎.eslintrc.cjs‎

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module.exports = {
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root: true,
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env: { browser: true, es2020: true },
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extends: [
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'eslint:recommended',
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'plugin:react/recommended',
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'plugin:react/jsx-runtime',
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'plugin:react-hooks/recommended',
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],
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ignorePatterns: ['dist', '.eslintrc.cjs'],
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parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
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settings: { react: { version: '18.2' } },
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plugins: ['react-refresh'],
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rules: {
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'react-refresh/only-export-components': [
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'warn',
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{ allowConstantExport: true },
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],
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},
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}

‎.gitignore‎

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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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pnpm-debug.log*
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lerna-debug.log*
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node_modules
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dist
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dist-ssr
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*.local
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# Editor directories and files
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.vscode/*
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!.vscode/extensions.json
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.idea
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.DS_Store
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*.suo
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*.ntvs*
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*.njsproj
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*.sln
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*.sw?

‎README.md‎

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# Pixel2CPP
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A browser-based pixel editor that exports Arduino-ready C++ code. Create pixel art and get optimized code for:
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- **1-bit packed bytes** for SSD1306 OLED displays (Adafruit_GFX drawBitmap)
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- **RGB565 16-bit values** for color TFT displays (ILI9341/ST7735/etc.)
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## Features
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- 🎨 Real-time pixel editor with drawing tools
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- 🔄 Undo/redo functionality
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- 🖼️ Image import with automatic scaling
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- 📐 Grid overlay and zoom controls
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- 🪞 Mirror drawing modes
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- 🧪 Built-in test suite for validation
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- 📱 Responsive design with Tailwind CSS
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## Quick Start
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1. Install dependencies:
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```bash
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npm install
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```
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2. Start the development server:
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```bash
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npm run dev
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```
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3. Open your browser to the local development URL (usually `http://localhost:5173`)
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## Usage
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1. **Set canvas size** - Choose dimensions suitable for your display
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2. **Select mode** - 1-bit for OLED, RGB565 for color TFT
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3. **Draw your sprite** - Use pen, erase, fill, or eyedropper tools
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4. **Export** - Click "Export .h" to download Arduino-ready header file
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5. **Test** - Run built-in tests to validate packing logic
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## Export Formats
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### 1-bit (OLED/SSD1306)
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```cpp
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const uint8_t sprite_bits[] PROGMEM = { 0xAA, 0x55, ... };
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display.drawBitmap(x, y, sprite_bits, width, height, 1);
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```
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### RGB565 (TFT/ILI9341)
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```cpp
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const uint16_t sprite_pixels[] PROGMEM = { 0xF800, 0x07E0, ... };
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// Use with tft.setAddrWindow() and tft.writePixel()
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```
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## Development
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- **Build**: `npm run build`
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- **Preview**: `npm run preview`
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- **Lint**: `npm run lint`
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## License
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MIT License - feel free to use for your projects!

‎index.html‎

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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<link rel="icon" type="image/svg+xml" href="/vite.svg" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Pixel2CPP - Pixel Editor to C++</title>
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<script src="https://cdn.tailwindcss.com"></script>
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</head>
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<body>
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<div id="root"></div>
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<script type="module" src="/src/main.jsx"></script>
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</body>
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</html>

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