TLpos Pro — PWA Scale Service Manager

Ceylon Weighing Machine Limited — Field Service App

✅ Features

• 📱 PWA — Install to home screen, works offline
• 📷 QR Scanner — Scan customer QR codes (requires HTTPS)
• 📍 GPS Location — Auto-capture customer GPS (requires HTTPS)
• 📊 Excel Reports — Export service/stamp records as .xlsx
• 💾 Local Database — IndexedDB (Dexie.js) — all data stored on device
• 📅 Stamp Records — Track weighing machine stamps per scale
• 🧾 Invoice Generator — Print/email service invoices

📁 File Structure

/
├── index.html          ← Main app
├── manifest.json       ← PWA manifest
├── sw.js               ← Service Worker (offline cache)
└── icons/
    ├── icon-192.png
    ├── icon-512.png
    └── apple-touch-icon.png

🚀 Deploy to GitHub Pages

1. Create a new GitHub repository
2. Upload all files maintaining the folder structure
3. Go to Settings → Pages → Source: main branch / root
4. Your app will be live at: https://yourusername.github.io/reponame/

⚠️ HTTPS required — Camera (QR) and GPS only work on HTTPS. GitHub Pages provides HTTPS automatically.

🔐 Admin Panel

Password: 1990

📱 Install as App (PWA)

• Android Chrome: Menu → "Add to Home Screen"
• iOS Safari: Share → "Add to Home Screen"
• Desktop Chrome: Install icon in address bar

🔧 Tech Stack

• Dexie.js (IndexedDB)
• Html5-QRcode (camera scanner)
• SheetJS XLSX (Excel export)
• Bootstrap 5 / Font Awesome
• SweetAlert2