Industrial Multi-Protocol Gateway (MTGateway)

Industrial gateway solution based on STM32 and W5500, supporting multiple protocols (Modbus TCP/RTU/ASCII, BACnet/IP, MQTT) for building automation and IIoT.

Benjamin

Published November 27, 2025

166 UCC

11 WCC

31 VAR

1 Following

Original author: Cyril Van (hyacinthxinxin) · ChinaOriginal source (new tab)

Components

Hardware components

WIZnet - W5500-EVB

x 1

STMicroelectronics - STM32F103RCT6

x 1

Project description

[English Version] [Analyst's Note: The 2.0 Discovery] From "Converter" to "Controller" Our initial look labeled this as a solid Modbus Gateway. However, a deeper code inspection (task_http_server.c, bacnet.c) revealed its true value. It is an intelligent, Web-Controlled System. Feature Discovery: HTTPD: It runs a lightweight HTTP Server, allowing users to configure IP and Serial settings directly via a web browser—no dedicated software required. Native BACnet Binding: It maps physical GPIOs directly to BACnet Binary Input objects, effectively turning the gateway into a remote I/O block for…

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