TinyPOS

TinyPOS is a versatile, lightweight Bluetooth Low Energy (BLE) printing bridge and utility app designed for portable 57mm thermal receipt printers. Whether you run a retail shop, food truck, pop-up market, or simply want to print study notes, retro photos, and labels on your pocket printer, TinyPOS delivers crisp, instantaneous thermal prints with zero cloud lock-in. ================================== ✨ KEY FEATURES ================================== 🧾 Formatted Text & Receipt Printing: • Print receipts, order tickets, or quick notes in any living world language and emojis. • Customizable typography: bold, underline, invert (white-on-black), left/center/right alignment, and font scaling. • Quick paper feed and cut margin controls. 📸 Photo Studio with Dithering: • High-fidelity Floyd-Steinberg error-diffusion dithering for photographic portraits and art. • Advanced dot-gain compensation matching official pocket printer photo quality. • Adjust contrast, sharpness, and brightness with live real-time previews. 📄 Document & PDF Invoice Printing: • Open and print PDF invoices, tickets, and receipts directly from your phone. • Automatic 384-dot roll auto-scaling and white border margin cropping. • Adaptive high-contrast binarization ensures fine text remains readable and sharp. 📱 Direct Thermal QR Code Generator: • Generate high-contrast, easy-to-scan thermal QR codes on the fly. • Add custom headers, footers, or transaction IDs above and below the QR code. ================================== 🌐 OPTIONAL COMPANION CLOUD RELAY ================================== Need to print receipts automatically from a remote web app, cloud ERP, Laravel site, or custom POS system? TinyPOS includes a built-in "Cloud Bridge" mode. Simply toggle it on and enter your WebSocket server URL to turn your smartphone into a remote wireless print gateway! • Open Source Server Repository: https://github.com/sajjad-amin/TinyPOS-Bridge • The companion server provides a full REST API, live Web Dashboard, and WebSocket relay mesh for automatic multi-terminal routing without requiring local server Bluetooth hardware. ================================== 🖨️ SUPPORTED PRINTERS & PROTOCOLS ================================== • Bainiu / Tiny Print BLE Printers: X6, X5, C9, MX0, iPrint, GB01, and compatible 57mm pocket thermal printers. • Standard ESC/POS BLE Printers: Any portable Bluetooth Low Energy receipt printer supporting standard services. ================================== 🔒 100% PRIVATE & OFFLINE-READY ================================== • No account creation or login required. • No third-party tracking, analytics, or advertisements. • All document rendering, dithering, and image processing happen entirely offline on your device.