---
title: "Exploring the W55RP20 SiP: A Powerful RP2040 + W5500 Integration for Embedded Ethernet"
url: "https://maker.wiznet.io/sophia/projects/exploring-the-w55rp20-sip-a-powerful-rp2040-w5500-integration-for-embedded-ethernet/"
markdown_url: "https://maker.wiznet.io/sophia/projects/exploring-the-w55rp20-sip-a-powerful-rp2040-w5500-integration-for-embedded-ethernet/md"
type: "UCC: User Created Content"
author: "Johannes"
author_url: "https://youtu.be/5UPFem0L21E?si=727rD2aYmi0_bLaa"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Johannes"
original_url: "https://youtu.be/5UPFem0L21E?si=727rD2aYmi0_bLaa"
published: "2025-06-27"
language: "en"
tags: ["C/C++"]
hardware: ["WIZnet W55RP20", "WIZnet W55RP20-EVB-Pico"]
likes: 0
views: 1375
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Exploring the W55RP20 SiP: A Powerful RP2040 + W5500 Integration for Embedded Ethernet

> An independent maker reviews the W55RP20 SiP, combining RP2040 and W5500 in one package for compact, reliable Ethernet-connected embedded development.

Original author: Johannes (source: https://youtu.be/5UPFem0L21E?si=727rD2aYmi0_bLaa)

## Components

- **WIZnet W55RP20** x 1 ([docs](https://wiznet.io/products/ionic-chips/w55rp20))
- **WIZnet W55RP20-EVB-Pico** x 1 ([docs](https://wiznet.io/products/powered-by-raspberry-pi/w55rp20-evb-pico))

## Article

An experienced maker and embedded systems enthusiast recently shared an in-depth video review of the **WIZnet W55RP20 System in a Package (SiP)**. The video provides a hands-on introduction to the hardware and software environment surrounding this compact and powerful module, which merges the popular **RP2040 MCU** from Raspberry Pi with WIZnet’s robust **W5500 Ethernet controller**.

This SiP design significantly simplifies Ethernet-based embedded development by reducing the need for complex wiring between the MCU and Ethernet IC. The reviewer demonstrates how this package enables fast prototyping and practical use in real-world IoT projects.

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### 🔍 Key Features Observed

✅ **RP2040 Microcontroller** with dual-core ARM Cortex-M0+

✅ **W5500 Ethernet Controller** with a built-in hardwired TCP/IP stack

✅ **Single-package integration** improves space and layout efficiency

✅ **Form-factor compatible with Raspberry Pi Pico**

✅ **Stable Ethernet connection** ideal for industrial and consumer-grade devices

---

### 🛠️ Hardware and Software Used

**Hardware Setup:**

W55RP20 SiP (combining RP2040 and W5500)

W55RP20-EVB-Pico board (evaluation platform)

RJ45 Ethernet port for physical network connection

Micro-USB for power and programming

**Software Environment:C/C++ SDK** based on Raspberry Pi Pico SDK

**WIZnet's W55RP20 SDK** for seamless integration with the Ethernet controller

Example code for TCP, HTTP, and MQTT connectivity

VS Code + CMake for development

Serial console tools like Tera Term / PuTTY for monitoring

Wireshark used to observe network traffic

The reviewer highlights how the SDK allows developers to get started quickly with familiar tools, while taking full advantage of hardware-based networking through the W5500.

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### 🎥 Highlights from the Video

The video covers a variety of topics useful for developers:

Unboxing and board layout overview

Explanation of the SiP design and its benefits

Ethernet communication demo

Insights into using the SDK and development environment

Real-world use case suggestions: sensor nodes, industrial automation, home networks, etc.

This kind of third-party content is especially valuable for developers evaluating whether the W55RP20 is right for their next project.

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### 🧠 Why Developers Should Consider the W55RP20

🔧 **Easier PCB Design**: No external wiring between MCU and Ethernet

⚡ **Low CPU overhead**: Hardware TCP/IP stack reduces firmware complexity

🌍 **Real Ethernet**: Faster and more stable than Wi-Fi or software stacks

🛠️ **Great for rapid prototyping and production alike**

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### 📥 Learn More

Interested in the same board shown in the video?
Visit [wiznet.io](https://www.wiznet.io) to access product documentation, SDKs, and evaluation board purchase options.

For the full video review and hands-on demo, check it out here:
🔗 [YouTube Video: W55RP20 SiP Review & Demo](https://youtu.be/5UPFem0L21E?si=olTUrS8NsCzuHxJb)

---

Source: https://maker.wiznet.io/sophia/projects/exploring-the-w55rp20-sip-a-powerful-rp2040-w5500-integration-for-embedded-ethernet/