Arduino Ethernet Shield 2
The Arduino Ethernet Shield 2 allows an Arduino Uno or Mega to connect to the internet. Based on the Wiznet W5500 Ethernet chip, it provides a full TCP/UDP network stack supporting up to eight simultaneous socket connections.
The shield connects via long wire-wrap headers that preserve the Arduino's pin layout and allow additional shields to be stacked on top. It also includes an onboard micro-SD card slot for storing files to serve over the network, and a reset controller to ensure the W5500 module initialises properly on power-up.
Key Features
- Wiznet W5500 Ethernet Chip – Full TCP and UDP network stack with up to 8 simultaneous socket connections
- Standard RJ-45 Connector – Integrated line transformer for reliable wired networking
- Micro-SD Card Slot – Store and serve files over the network (accessible via the SD Library, SS on Pin 4)
- Stackable Design – Long wire-wrap headers maintain pin layout and allow shield stacking
- Reset Controller – Ensures proper W5500 initialisation on power-up
- PoE-Ready RJ-45 – Power over Ethernet enabled connector (PoE module sold separately)
- TinkerKit Connectors – Input, output, and communication interfaces on the top side
- Arduino 1.0 Pinout – Compatible with Rev 3 of the Arduino Uno board
Ideal For
- IoT projects requiring wired internet connectivity
- Web servers and network-connected data loggers
- Remote monitoring and control systems
- Projects where Wi-Fi is unreliable or unavailable
Resources
The Arduino Ethernet Shield 2 appears in the following collections:
