---
title: "W55RP20（ネットワーク機能つきラズパイPico）の実験"
url: "https://maker.wiznet.io/mason/projects/w55rp20pico/"
markdown_url: "https://maker.wiznet.io/mason/projects/w55rp20pico/md"
type: "UCC: User Created Content"
author: "admin"
author_url: "https://www.windesign.work/w55rp20%EF%BC%88%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E6%A9%9F%E8%83%BD%E3%81%A4%E3%81%8D%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4pico%EF%BC%89%E3%81%AE%E5%AE%9F%E9%A8%93/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "admin"
original_url: "https://www.windesign.work/w55rp20%EF%BC%88%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E6%A9%9F%E8%83%BD%E3%81%A4%E3%81%8D%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4pico%EF%BC%89%E3%81%AE%E5%AE%9F%E9%A8%93/"
published: "2025-08-01"
language: "ja"
tags: ["W55RP20"]
hardware: ["WIZnet W55RP20-EVB-Pico"]
likes: 0
views: 6243
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# W55RP20（ネットワーク機能つきラズパイPico）の実験

> W55RP20（ネットワーク機能つきラズパイPico）の実験

Original author: admin (source: https://www.windesign.work/w55rp20%EF%BC%88%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E6%A9%9F%E8%83%BD%E3%81%A4%E3%81%8D%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4pico%EF%BC%89%E3%81%AE%E5%AE%9F%E9%A8%93/)

## Components

- **WIZnet W55RP20-EVB-Pico** x 1 ([docs](https://wiznet.io/products/powered-by-raspberry-pi/w55rp20-evb-pico))
- Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software))

## Documents and links

- [WeatherChecker](https://github.com/katsumin/WeatherChecker/tree/w55rp20) (code)
- [platformio.ini](https://maker.wiznet.io/_lib/download.asp?path=project/20&downfile=platformio%2Eini) (code)

## Article

### Introduction

Recently, we found an excellent blog post that documents a detailed experiment with the **W55RP20 evaluation board**, which integrates a **Raspberry Pi Pico** and the **W5500 Ethernet controller** in a single chip.

The original article (in Japanese) can be found here:
👉 [Experiment with W55RP20 (Network-enabled Raspberry Pi Pico)](https://www.windesign.work/w55rp20%EF%BC%88%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E6%A9%9F%E8%83%BD%E3%81%A4%E3%81%8D%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4pico%EF%BC%89%E3%81%AE%E5%AE%9F%E9%A8%93/)

---

### What the Blog Covers

The blog shares practical insights into:

**Built-in Networking:**
How the W55RP20 uses **PIO instead of SPI** for communication with the W5500, and how to properly configure it within the **Arduino-Pico** framework.

**TFT LCD Display Setup:**
The challenges in handling a **320×240 pixel TFT LCD** and how adjusting width/height orientation settings in LGFX resolved rendering issues.

**PoE (Power over Ethernet) Testing:**
Results from experimenting with **WIZPoE-S1** and **WIZPoE-P1**, including lessons learned when powering the board through PoE hubs.

The author even created a **weather-forecast checker demo** to showcase the practical use of the board.

---

### Why This Matters

The W55RP20 opens up exciting possibilities for embedded developers:

It combines **Raspberry Pi Pico’s ecosystem** with WIZnet’s proven Ethernet hardware.

Developers can leverage **PIO-based networking** for efficient communication.

With proper display handling and PoE support, it’s a strong candidate for IoT and industrial applications.

---

### Conclusion

This blog post is a great resource for anyone exploring the **W55RP20 evaluation board** and its unique networking features.

We highly recommend reading the full article here:
👉 [Experiment with W55RP20 (Network-enabled Raspberry Pi Pico)](https://www.windesign.work/w55rp20%EF%BC%88%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E6%A9%9F%E8%83%BD%E3%81%A4%E3%81%8D%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4pico%EF%BC%89%E3%81%AE%E5%AE%9F%E9%A8%93/)

### Hands-on Practice

Install the PlatformIO IDE extension in VS Code.

![](https://maker.wiznet.io/upload/ckeditor5/646996258%5F1756290907%2Epng)

After cloning the code from the link, open the project in VS Code by selecting the folder through the PlatformIO extension (Pick a folder).
<https://github.com/katsumin/WeatherChecker/tree/w55rp20>
![](https://maker.wiznet.io/upload/ckeditor5/646996258%5F1756291041%2Epng)

In PROJECT TASKS, select the w55rp20 item and click Build.
If a build error occurs, try replacing it with the attached `platformio.ini`.

![](https://maker.wiznet.io/upload/ckeditor5/646996258%5F1756292704%2Epng)

By clicking the Upload button or copying the `.pio\build\w55rp20\firmware.uf2` file to your W55RP20 board, you can check the result through the terminal. If you have a GFX LCD, an image matching the weather will be displayed on the LCD.

![](https://maker.wiznet.io/upload/ckeditor5/646996258%5F1756292890%2Epng)

---

Source: https://maker.wiznet.io/mason/projects/w55rp20pico/