PortFlow: Bridging Laravel with the Physical World — Serial Hardware, IoT Sensors & Thermal Printers How to connect barcodes scanners, RFID readers, fingerprint modules, thermal printers, RS-232 scales, and Arduino/ESP32 microcontrollers to a Laravel application — through a clean, driver-based architecture and the browser's Web Serial API. Most Laravel packages live entirely in software. They deal with HTTP, databases, queues, and caches — all safely inside the machine. PortFlow does not. It bridges the gap between physical hardware and Laravel's event system and Eloquent database, turning raw serial bytes into typed, routable value objects that your application can consume like any other event — with full PHPStan level 8 type safety, test coverage, and production-grade security hardening.…