Wiznet makers

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.

🔍 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.

🎥 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.

🧠 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

📥 Learn More

Interested in the same board shown in the video?
Visit 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