Talking to Hardware

Has anyone had any experience or can share ideas on how potentially I could read data from a physical device?

My aim is to connect a serial device over com port which generates ZPL label data. I need to upload this to a Wappler PHP web app. I’ve already built the logic to convert the ZPL data into human readable data, but just struggling on how I can upload this data with a physical device connected to a PC with web browser.