Arduino Ethernet Shield W5100 with SD Card Slot

The Arduino Ethernet Shield W5100 is an add-on board that gives your Arduino a wired internet and local network connection through a standard RJ45 port. Built around the well-known W5100 chip and fitted with an onboard SD card slot, it stacks directly on top of compatible Arduino boards so your project can go online, log data, or be controlled remotely. It's a popular choice for makers, students, and DIY builders working on smart-home, monitoring, and automated irrigation projects.

Key features

• Based on the reliable W5100 Ethernet controller chip
• Built-in SD card slot for local data logging and file storage
• Standard shield form factor that stacks on compatible Arduino boards
• Simple integration with the standard Arduino Ethernet library
• Suited for both beginner learning kits and practical project builds

Typical uses

• Connecting Arduino-based irrigation or garden controllers to a network
• Remote monitoring of sensors over a local network or the internet
• Logging temperature, moisture, or timing data to an SD card
• Building simple web-controlled relays, pumps, and valves

How to choose / tips

Confirm the shield fits the Arduino board you're using and that your project has a free RJ45 network point or router nearby. For data logging, keep a microSD card on hand. If your build needs many sensors, plan your pin usage early since the shield reserves some pins for the W5100 and SD functions.

Why tna W rna

At tna W rna we focus on quality components, reliable sourcing, and fast delivery across Egypt. Order with cash on delivery and get the parts your project needs without the hassle.