---
title: "Getting Started with Arduino Ethernet3 Library on W55RP20"
url: "https://maker.wiznet.io/mason/projects/getting-started-with-ethernet3-on-w55rp20-using-arduino/"
markdown_url: "https://maker.wiznet.io/mason/projects/getting-started-with-ethernet3-on-w55rp20-using-arduino/md"
type: "WCC: WIZnet Created Content"
author: "Mason Lee"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Mason Lee"
published: "2025-09-05"
language: "en"
tags: ["W55RP20"]
hardware: ["WIZnet W55RP20-EVB-Pico"]
likes: 0
views: 7903
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Getting Started with Arduino Ethernet3 Library on W55RP20

> Getting Started with Arduino Ethernet3 Library on W55RP20

Original author: Mason Lee

## Components

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

## Documents and links

- [W55RP20-Ethernet3](https://github.com/WIZnet-ioNIC/W55RP20-Ethernet3) (code)

## Article

This guide provides instructions on how to build the W55RP20-EVB-Pico on Arduino. The Arduino version used is 1.8.19, which can be downloaded from the link below.
<https://www.arduino.cc/en/software>

Additionally, this post is based on and works with earlephilhower's arduino-pico.
<https://github.com/earlephilhower/arduino-pico>

1. Installing Raspberry Pi Pico/RP2040/RP2350 Boards
   Open Arduino, go to File -> Preferences -> Additional Boards Manager URLs:
   Input **https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json**
   ![](https://maker.wiznet.io/upload/ckeditor5/23318719%5F1729241050%2Epng)

   And go to **Tools -> Board -> Boards Manager**, search for 'RP2040', and install **Raspberry Pi Pico/RP2040/RP2350 (version 4.2.0 or later)**.
   ![](https://maker.wiznet.io/upload/ckeditor5/264348846%5F1730391184%2Epng)

2. Download W55RP20-Ethernet3 Library
   Clone or download it from the following W55RP20-Ethernet3 GitHub link ([https://github.com/WIZnet-ioNIC/W55RP20-Ethernet3](https://github.com/WIZnet-ioNIC/W55RP20-Ethernet3?utm_source=chatgpt.com)) into your Arduino `libraries` folder (e.g., `Documents/Arduino/libraries`), and then run `DhcpAddressPrinter.ino` from the `examples` folder.

3. Build example and check
   Go to **Tools -> Board -> Raspberry Pi RP2040 -> WIZnet W55RP20-EVB-Pico**
   ![](https://maker.wiznet.io/upload/ckeditor5/210001725%5F1757070689%2Epng)

4. Upload
   Press and hold the BOOTSEL button on the board, then press the RUN button. After that, click the Upload button in Arduino to build the firmware, and verify it through the Serial Monitor

   ![](https://maker.wiznet.io/upload/ckeditor5/210001725%5F1757070924%2Epng)
   ![](https://maker.wiznet.io/upload/ckeditor5/210001725%5F1757070938%2Epng)

---

Source: https://maker.wiznet.io/mason/projects/getting-started-with-ethernet3-on-w55rp20-using-arduino/