W5100 Ethernet Module Ethernet Network Module for Arduino

Looking for W5100 Module? W5100 Ethernet Module Ethernet Network Module for Arduino is available at Zbotic with fast shipping across India.

Product Description

• The W5100 Ethernet Module is a single-chip Ethernet controller tailored for embedded applications that demand easy integration, stability, performance, and cost-effectiveness in terms of both area and system.

• The module facilitates Internet connectivity without the need for an OS and adheres to the IEEE 802.3 17 BASE-T and 802.3u 10 BASE-TX standards.

• Incorporating a well-established TCP/IP stack alongside an Ethernet MAC & PHY, the W5100 supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols. This stack has undergone extensive testing across various applications over several years. Additionally, the W5100 is equipped with a 16KB internal buffer for efficient data transmission.

• The W5100 simplifies operations by eliminating the need to manage the Ethernet Controller, requiring only straightforward socket programming instead.

Pin Connection

Connect to Uno/Mega
V+5: 5v
GND: GND
MO: D11 (D51)
MI: D12 (D50)
SCK: D13 (D52)
RST: RESET

Specification:

Features

• Support Hardwired TCP/IP Protocols: TCP, UDP, ICMP, IPv4 ARP, IGMP, PPPoE, Ethernet
• 10BaseT/100BaseTX Ethernet PHY embedded.
• Auto-Negotiation (Full-duplex and half duplex)
• Support Auto MDI/MDIX
• Simultaneously Supports to 4 independent sockets.
• Not support to IP Fragmentation
• Internal 16Kbytes Memory for Tx/Rx Buffers
• 0.18 µm CMOS technology
• 3.3V operation with 5V I/O signal tolerance
• Provide Serial Peripheral Interface (SPI MODE 0, 3) support
• Support ADSL connection (with support PPPoE Protocol with PAP/CHAP Authentication mode)

Package Includes 

• 1 x W5100 Ethernet Module

W5100 Ethernet Module Ethernet Network Module for Arduino Overview

The W5100 Ethernet Module Ethernet Network Module for Arduino is a compact, single-chip Ethernet controller designed to add wired network connectivity to microcontroller projects. It integrates a proven TCP/IP stack with an embedded MAC and PHY, enabling Arduino boards to communicate over standard Ethernet networks without requiring an operating system.

Key Features of W5100 Ethernet Module Ethernet Network Module for Arduino

• Supports hardwired TCP/IP protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP and PPPoE for robust network communication
• Integrated 10BaseT/100BaseTX Ethernet PHY with Auto-Negotiation and Auto MDI/MDIX for plug-and-play connectivity
• Four independent socket connections—simultaneously handle up to four TCP or UDP clients
• 3.3V operation with 5V I/O signal tolerance, compatible with standard Arduino voltage levels
• High-density 0.18 µm CMOS process ensures low power consumption and stable performance
• Serial Peripheral Interface (SPI MODE 0 and 3) for easy integration with Arduino SPI pins
• Fast shipping across India from Zbotic—get authentic modules delivered quickly

Applications and Use Cases

• Adding Ethernet connectivity to Arduino-based home automation systems
• Remote data logging from environmental sensors to a network server
• Developing network-enabled industrial control panels and HMIs
• Building DIY network printers or file servers with microcontrollers
• Creating Ethernet gateways for legacy serial devices
• Implementing real-time monitoring dashboards with Arduino and Ethernet

How to Use W5100 Ethernet Module Ethernet Network Module for Arduino

Connect the module’s SPI pins (MOSI, MISO, SCLK, SS) to your Arduino’s corresponding SPI header, supply 3.3 V and GND, and plug in an RJ45 cable to the Ethernet jack. Install the Arduino Ethernet library, select the W5100 driver in your sketch, set up IP/MAC addresses, and you’re ready to open TCP/UDP connections through code.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
• Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
• Free Shipping: Free delivery on qualifying orders
• COD Available: Cash on Delivery, UPI, cards, net banking
• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

Can I power the W5100 module from a 5V Arduino board?

Yes. The module operates at 3.3 V but its I/O pins are 5 V tolerant, so you can power it with a 3.3 V regulator and directly interface SPI signals from a 5 V Arduino.

How many simultaneous network connections can the W5100 handle?

The W5100 supports up to four independent sockets, allowing your Arduino to manage four simultaneous TCP or UDP sessions.

Do I need an external Ethernet PHY?

No external PHY or MAC is required. The W5100 includes a built-in Ethernet PHY compliant with IEEE 802.3 10BASE-T and 100BASE-TX standards.