Ethernet W5100 Shield Network Expansion Board with Micro SD Card Slot
The Ethernet W5100 Shield Network Expansion Board with Micro SD Card Slot is a versatile networking add-on designed to provide wired Ethernet connectivity and local data storage to Arduino and compatible microcontroller projects. It integrates the W5100 Ethernet controller with an RJ45 network port for reliable TCP/IP communication and a micro SD card socket for logging data, serving web pages, or storing sensor readings.
This shield plugs directly onto standard Arduino boards such as UNO Mega and Leonardo, offering easy setup for IoT devices, web servers, data loggers, home automation systems, and networked sensor applications. It supports common Arduino Ethernet libraries, enabling quick development of networked capabilities.
KEY FEATURES
- W5100-based hardware Ethernet controller
- Standard RJ45 Ethernet port with integrated magnetics
- Micro SD card slot for data logging and storage
- Supports TCP/IP networking
- Compatible with Arduino Ethernet library
- Easy shield plug-on form factor
- Ideal for IoT, web servers, and networked projects
SPECIFICATIONS
- Ethernet Controller W5100 hardware Ethernet chip
- Network Interface RJ45 with magnetics
- Supported Protocols TCP/IP, UDP, DHCP
- Micro SD Slot Supports standard micro SD cards
- Interface SPI for Ethernet and SD communication
- Operating Voltage 5V DC (via host Arduino)
- Compatible With Arduino Uno, Mega, Leonardo
INTERFACES
- Arduino Shield pins (standard 2× row headers)
- RJ45 Ethernet network port
- Micro SD card socket
- SPI pins (D11 MOSI, D12 MISO, D13 SCK)
- CS pins for Ethernet and SD (variable per shield)
