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STM32-W5500-Embedded-WebServer: Embedded HTTP Web Server on Custom STM32F446RCTx Board

An end-to-end embedded web server built from scratch on a custom PCB — serving a login page and an Industrial IoT dashboard straight out of Flash memory, with z

lawrence

Published July 12, 2026 · © MIT license (MIT)

Original author: S VidishaOriginal source (new tab)

STM32-W5500-Embedded-WebServer: Embedded HTTP Web Server on Custom STM32F446RCTx Board

Components

Hardware components

WIZnet parts

Project description

Project Overview Most embedded web server tutorials hand you a devkit and an off-the-shelf Ethernet shield. This project takes a different route: it starts from a custom-designed STM32F446RCTx development board with the W5500 integrated directly on the PCB, and it delivers a multi-page, browser-accessible web application that lives entirely inside microcontroller Flash. When a browser on the same network hits the board's static IP address, it first lands on a login page. After authentication, it is redirected to a polished Industrial IoT dashboard — all served by 180 MHz of Cortex-M4, over…

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