ARDUINO Ethernet SHIELD 2 - A000024

Arduino Ethernet Shield 2

The Arduino Ethernet Shield 2 is an expansion board that lets you connect compatible Arduino boards (like Uno, Mega, Leonardo) to the Internet or local network using a wired Ethernet connection. It's ideal for building IoT devices, network servers, home automation, and data logging solutions all with stable, fast wired connectivity.

INFOGRAPHIC OVERVIEW

Arduino Ethernet Shield 2 | | (A000024) | Network Interface | Ethernet (RJ45 Connector) | | Protocol Support | TCP, UDP, HTTP | | Controller Chip | W5500 Ethernet Controller | | Buffer Memory | 32 KB | | Power Input | 3.3V / 5V (From Host Board) | | Compatible With | Arduino Uno, Mega, Leonardo | | Shield Form Factor | Standard Stackable | | Max Spong>Arduino Ethernet Shield 2 allows an Arduino board to connect to a network using standard RJ45 wired Ethernet. Using the onboard W5500 Ethernet controller, it supports network communication protocols such as:

TCP (Transmission Control Protocol) UDP (User Datagram Protocol) DHCP (Dynamic Host Configuration Protocol) HTTP (for web servers)

This lets your Arduino become a web server, network sensor, or data logger. You can build projects like:

• Connected weather station

• Web-based robot controller

• Local dashboard display

• Industrial data collector

2 Key Features Explained

Ethernet (RJ45) Port

• Standard network cable interface

• Connects to routers, switches, or hubs

critical deployments.

W5500 Ethernet Controller

The heart of the shield:

Handles network protocols efficiently Offloads processing from the Arduino Built-in TCP/UDP stack 32 KB buffer memory

This makes network communication smoother and faster than older Ethernet chips.

Protocol Support

This allows the Arduino to serve pages, respond to API calls, or communicate with cloud services.

3 Compatibility & Power

Works with:

• Other standard shield-compatible boards

Powered by host board: The shield takes its power from the Arduino 5V / 3.3V rail. The shield stack-mounts directly on top of the Arduino board using headers.

4 Typical Connections

Arduino Board Stack On Ethernet Shield 2 RJ45 Ethernet Cable Router / Switch

This allows the Arduino + Ethernet Shield combo to:

• Access the Internet

• Serve pages on a LAN

• Communicate with other networked devices

• Log data to cloud APIs

5 Example Projects

Web-Controlled RobotControl rocker commands via your browser. Network Weather StationSend sensor data to remote dashboards.ingTrigger events via network commands.

6 How It Works (Visual Flow)

Sensor Data Arduino Ethernet Shield Network Data Processing TCP/UDP Protocol Web Requests Router RJ45

This pipeline turns your Arduino into a network-aware smart device.

7 Libraries & Code Support

Ethernet Library Official Arduino network support Examples Include:

• Web server

• DHCP client

• Client HTTP demos Compatible with Arduino IDE Runs on boards with enough memory (Uno, Mega, etc.)

8 Why Use Ethernet Instead of Wi-Fi

Faster & more stable connection No wireless interference24) is a reliable way to give your Arduino wired network access. Its W5500 controller, standard Ethernet port, and robust protocol support make it ideal for IoT, web interfaces, and connected sensor/actuator projects in classrooms, homes, and industrial applications.