Ethernet W5100 Shield with Micro SD Card Slot | Network Expansion Board | For Arduino Uno & Mega Microcontrollers
Description
The SPIDER Automation Ethernet W5100 Shield is a high-performance network expansion board engineered to connect Arduino microcontrollers directly to local area networks and the internet. At its core lies the Wiznet W5100 ethernet chip, which provides a robust hardware-level IP stack capable of supporting both TCP and UDP protocols, alongside up to four simultaneous socket connections.
Designed with an integrated Micro-SD card slot, this shield enables your projects to not only transmit and receive network packets but also store and serve web files over the network. Incorporating an onboard reset controller to ensure stable power-up initialization and a stackable pass-thru header design, the W5100 Ethernet Shield is an essential building block for IoT gateways, remote data loggers, and web-controlled automation setups.
Key Features
- Wiznet W5100 Ethernet Controller: Full hardware network stack supporting TCP/IP, UDP, and up to four simultaneous socket connections.
- Integrated Micro-SD Card Slot: Provides local storage capabilities for serving web pages, logging data, or managing files over the network.
- Stackable Wire-Wrap Headers: Long pass-thru pins keep the board layout intact, allowing seamless stacking of secondary expansion shields.
- Automatic Reset Controller: Ensures the W5100 network module initializes correctly on power-up across various Arduino versions.
- Standard RJ-45 Interface: Equipped with a standard network port and integrated line transformer for stable 10/100Mb data rates.
- Broad Compatibility: Fully compatible with official Arduino Ethernet libraries and standard microcontroller hardware layouts.
Benefits
- Instant Internet Connectivity: Bridges microcontroller projects to web networks quickly using standard RJ45 cabling.
- Dual-Functionality Architecture: Combines real-time network communication and mass data storage into a single modular footprint.
- Multi-Client Support: Handles up to four independent socket connections simultaneously for versatile server or client operations.
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Expandable Modular Setup: Pass-thru pin structure lets you layer sensors, relay boards, or display shields on top without losing ports.
Applications
- IoT & Smart Home Hubs: Web-server controllers for managing home automation nodes and appliances remotely over the internet.
- Remote Data Acquisition Systems: Networked sensor nodes that collect and log field data directly to local Micro-SD storage or cloud servers.
- Industrial Ethernet Monitoring: Remote telemetry units for tracking machine status and sensor metrics across a local factory network.
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Web-Enabled Educational Labs: Advanced networking projects for students learning TCP/IP protocols and embedded web server deployment.
Package Includes
- 1 x SPIDER Automation Ethernet W5100 Shield Network Expansion Board
Specifications
| Item Type | Ethernet Network & Storage Expansion Shield |
| Brand / Series | SPIDER Automation |
| Model Type | Ethernet W5100 Shield with Micro SD Slot |
| Network Controller | Wiznet W5100 (Hardware TCP/IP Stack) |
| Connection Speed | 10 / 100 Mb (Standard RJ-45 Port) |
| Storage Interface | Onboard Micro-SD Card Slot (Accessible via SD Library, SS on Pin 4) |
| Compatibility | Arduino Uno, Arduino Mega (1280/2560), Duemilanove (168/328) |
| Operating Voltage | 5V DC (Powered via host board) |
| Board Dimensions | 75 × 54 × 25 mm |
| Board Weight | 78 g |
| Shipping Weight | 0.078 kg |
| Shipping Dimensions | 12 × 8 × 4 cm |
























