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

The Arduino Ethernet W5100 Shield Network Expansion Board with Micro SD Card Slot is a powerful and reliable solution for adding wired internet connectivity to your Arduino projects. Designed for seamless integration, this shield enables Arduino boards such as the UNO R3, UNO 328, Mega 2560, and Mega 1280 to connect directly to a local network or the internet using a standard RJ-45 Ethernet cable (not included). At the heart of the shield is the Wiznet W5100 Ethernet controller, a robust chip with a built-in TCP/IP stack that supports both TCP and UDP protocols. The W5100 allows up to four simultaneous socket connections, making it ideal for web servers, IoT dashboards, remote monitoring systems, and data logging applications. Using the standard Arduino Ethernet Library, developers can quickly write sketches to communicate over the internet with minimal configuration. This Ethernet shield features an onboard Micro SD card slot, enabling projects to store or retrieve files, log sensor data, or serve web pages directly from the SD card. The Micro SD interface is fully compatible with the Arduino SD Library, with the SS pin mapped to digital pin 4, ensuring smooth operation. Earlier versions with full-size SD cards are not supported, ensuring compact and modern storage options. The shield connects to the Arduino using long stackable wire-wrap headers, preserving the original pin layout and allowing additional shields to be stacked on top. The latest revision exposes the Arduino 1.0 (Rev 3) pinout, ensuring maximum compatibility. An onboard reset controller guarantees proper initialization of the W5100 on power-up, eliminating manual resets required in older versions. With integrated line transformer, Power over Ethernet (PoE) support, and wide Arduino compatibility, the Ethernet W5100 Shield is an excellent choice for stable, secure, and high-performance wired networking projects. This module is compatible with following Arduino versions, Arduino UNO R3 Arduino MEGA Features Based on the W5100Based on the Wiznet W5100 allows an Arduino board to connect to the internet. Stackable Design, can directly be supported by for Arduino official Ethernet Library. Supports up to four simultaneous socket connections Can be used to store files for serving over the network. Compatible with the for Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560). Can be accessed using the Mini SD TF library. The current shield has a Power over Ethernet (PoE) module designed to extract power from a conventional twisted pair Category 5 Ethernet cable. IEEE802.3af compliant Low output ripple and noise (100mVpp) Overload and short-circuit protection 1500V isolation (input to output) Package Includes 1 x Ethernet W5100 Shield Network Expansion Board Related