STM32 Ethernet with W5500 (PART 2): TCP Server | Receive, Echo & Control LED via Ethernet

Build a TCP Server on STM32 using the W5500 Ethernet module — receive, echo, and control LEDs via Ethernet in this step-by-step tutorial.

sophia

Published November 11, 2025

Original author: ControllersTechOriginal source (new tab)

Project description

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The client will connect to a TCP server, send data, and receive data back. We will test two types of servers.

STM32 W5500 TCP Client Tutorial

In this tutorial, we’ll learn how to create a FreeRTOS-based TCP server using the STM32 and W5500 Ethernet module.

STM32 W5500 TCP Server with FreeRTOS (Non-Blocking Multi-Tasking Setup)

In this tutorial, we’ll take the next step and create a TCP server on STM32 using the W5500 module.

STM32 W5500 Ethernet Tutorial Part 2 – TCP Server in Blocking Mode

In this tutorial, we’ll learn how to connect and configure the W5500 Ethernet module with STM32 using SPI.

How to Interface W5500 Ethernet Module with STM32 via SPI

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