Ethernet W5100 Shield Network Expansion Board w/ Micro SD Card Slot for Arduino

Description

The Arduino Ethernet Shield allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. The Ethernet W5100 Shield Network Expansion Board w/ Micro SD Card Slot supports up to four simultaneous socket connections.

This Ethernet library to write sketches use connects to the internet using the shield. The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top. The shield also includes a reset controller, to ensure that the W5100 Ethernet module is properly reset on power-up. 

The most recent revision of the board exposes the 1.0 pinout on rev 3 of the Arduino UNO board. This Ethernet Shield connects the UNO R3 board to the internet in mere minutes. The Ethernet Shield has a standard RJ-45 connection, with an integrated line transformer and Power over Ethernet enabled. There is an onboard micro-SD card slot, which can be used to store files for serving over the network. It is compatible with Uno and Mega (using the Ethernet library). The onboard microSD card reader is accessible through the SD Library. When working with this library, SS is on Pin 4. The original revision of the shield contained a full-size SD card slot; this is not supported.

• Ethernet shield with wiznet W5100 ethernet chip
• Supports reading and writing mini SD / TF card
• Direct plug puzzle board, NO soldering needed
• The Ethernet W5100 network expansion module.