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How to Build an HTTP Client with WIZnet W5500 on STM32F10x?

This STM32F10x project builds a wired HTTP client with the WIZnet W5500 Ethernet controller.

ronpang

Published May 16, 2026

Original author: LaoZhangGong123Original source (new tab)

How to Build an HTTP Client with WIZnet W5500 on STM32F10x?

Project description

How to Build an HTTP Client with WIZnet W5500 on STM32F10x? Summary This STM32F10x project builds a wired HTTP client with the WIZnet W5500 Ethernet controller. The STM32 configures W5500 through SPI, resolves httpbin.org with DNS, opens a TCP socket, sends HTTP GET and POST requests, and prints the server response through UART. W5500 acts as the Ethernet MAC/PHY and hardware TCP/IP socket engine for commercial embedded devices that need simple wired server communication. What the Project Does The project demonstrates a complete outbound HTTP client flow on STM32F10x with W5500. It uses…

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