fiscalberry
Fiscalberry is a Python-based WebSocket server designed to bridge the gap between software applications and fiscal or receipt printers. Acting as a unified protocol, server, and driver, it allows developers to send printing commands via standardized JSON over a network, abstracting away complex hardware-specific codes. The system receives JSON requests, translates them into the specific command sets required by connected printers, executes the print job, and returns asynchronous responses. Currently, it supports Hasar and Epson fiscal printers, including second-generation models like the SMH/PT-250F and TM-T900FA, as well as any receipt printer compatible with ESC/P commands. Originally conceived for Raspberry Pi to integrate fiscal devices into Internet of Things environments, Fiscalberry runs on any operating system supporting Python, including Windows and Linux. It offers both a graphical user interface for interactive use and a lightweight command-line mode ideal for headless server deployments. By handli