KelvinTemperature/LingoLearn-AI

LingoLearn AI helps students translate English textbook content into Hausa, Igbo, Yoruba, and Nigerian Pidgin using AI-powered OCR, contextual translation, and voice output. # 🎓 LingoLearn AI ### Educational Equity App · Abuja, Nigeria > *"Your textbook, explained in your language."* LingoLearn AI helps students translate English textbook content into **Hausa, Igbo, Yoruba, and Nigerian Pidgin** using AI-powered OCR, contextual translation, and voice output. --- ## 📱 App Features | Feature | Description | |--------|-------------| | 📸 **Camera Scan** | Full-screen camera with scan frame overlay | | 🔍 **AI OCR** | Extracts text from textbook photos using GPT-4o-mini | | 🧠 **Smart Simplification** | Rewrites content in Big Brother/Sister tutor style | | 🌍 **4 Languages** | Hausa, Igbo, Yoruba, Nigerian Pidgin | | 🔊 **Voice Output** | Google Cloud TTS reads explanations aloud | | 📡 **Data-Lite Mode** | Images compressed to ~150KB before API call | --- ## 🗂️ Project Structure ``` LingoLearnAI/ ├── App.js # Root: Navigation setup (Stack: Home → Camera → Results) ├── app.json # Expo config (permissions, icons, splash) ├── package.json # Dependencies ├── babel.config.js # Babel + env vars ├── .env.example # API key template (copy to .env) │ └── src/ ├── theme/ │ └── index.js # Colors, Typography, Spacing, Shadows, Language config │ ├── screens/ │ ├── HomeScreen.js # Landing page + Scan Now CTA + language picker │ ├── CameraScreen.js # Full-screen camera with scan frame + flash control │ └── ResultsScreen.js # OCR results + translated explanation + TTS │ ├── components/ │ └── LanguagePicker.js # Animated horizontal pill-style language selector │ ├── services/ │ ├── apiService.js # Gemini: OCR + translation logic │ └── ttsService.js # Google Cloud TTS + Expo AV playback │ └── utils/ └── imageOptimizer.js # Resize + JPEG compress photos (Data-Lite strategy) ``` --- ## 🚀 Getting Started ### Prerequisites - Node.js 18+ - Expo CLI: `npm install -g expo-cli` - Expo Go app on your A …