W5500 Ethernet Module SPI to RJ45 Network Board

The W5500 Ethernet Module adds reliable 10/100 Mbps wired Ethernet connectivity to compatible microcontroller projects through an SPI interface. Built around the WIZnet W5500 controller with an RJ45 port, it is suitable for Arduino, ESP32, STM32, IoT, embedded networking, monitoring and automation applications.

Description

The W5500 Ethernet Module is an SPI-based wired networking board built around the WIZnet W5500 Ethernet controller. It provides a convenient way to add 10/100 Ethernet connectivity to compatible microcontroller and embedded-system projects through an RJ45 network connection.

The W5500 integrates a hardwired TCP/IP stack, 10/100 Ethernet MAC and PHY, 32 KB internal TX/RX buffer memory, and support for up to 8 independent hardware sockets. It communicates with an external microcontroller over SPI, making it suitable for embedded networking applications where reliable wired Ethernet connectivity is required.

The actual Chip.pk module features a WIZnet W5500 IC, HanRun HR911105A RJ45 connector, 25.000 MHz crystal, onboard 1117C 33 regulator, status LEDs, and clearly labelled SPI/control connections including SCLK, SCS, MOSI, MISO, RST and INT.

It can be integrated into suitable Arduino, ESP32 and STM32 projects through SPI when the selected development board, wiring, power arrangement and software library are configured correctly. WIZnet provides MCU-independent W5500 drivers, Arduino resources, and STM32 example resources.

Key Features

• Genuine WIZnet W5500 controller IC visible on the actual module
• SPI interface for communication with an external MCU
• Integrated hardwired TCP/IP stack
• Embedded 10Base-T / 100Base-TX Ethernet PHY
• Supports up to 8 independent hardware sockets
• 32 KB internal memory for TX/RX buffers
• Supports TCP, UDP, ICMP, IPv4, ARP, IGMP and PPPoE
• W5500 SPI supports Mode 0 and Mode 3, up to 80 MHz at the IC level
• RJ45 Ethernet connector with integrated status LEDs
• 25 MHz crystal visible on the module
• RST and INT connections exposed
• Suitable for compatible Arduino, ESP32, STM32 and other SPI-capable MCU projects
• Useful for embedded web servers, networked controllers, monitoring systems and IoT applications

The controller-level networking and SPI specifications above are documented by WIZnet.

Technical Specifications

The 10/100 PHY, protocols, sockets, memory, SPI modes/speed and 3.3 V IC operation with 5 V I/O signal tolerance are W5500 controller specifications from WIZnet.

Important power note: the actual Chip.pk board visibly exposes both 5V and 3.3V labels and contains a 3.3 V regulator. However, because an authoritative schematic for this exact generic board revision has not been verified, the 5V and 3.3V header pins should not be described as interchangeable power inputs. Users should confirm the module's required wiring before connection.

Applications

The W5500 Ethernet Module can be used for projects such as:

• Microcontroller-based wired Ethernet connectivity
• Embedded web servers and network clients
• IoT devices requiring wired networking
• Sensor monitoring and data acquisition systems
• Home and industrial automation prototypes
• Network-enabled control systems
• TCP/UDP communication projects
• Ethernet-connected Arduino projects
• ESP32 wired Ethernet projects
• STM32 Ethernet and embedded networking projects

WIZnet's official driver ecosystem also provides services/examples involving DHCP, DNS, MQTT, SNTP, TFTP and HTTP server applications.

Compatibility

The W5500 communicates with the host through SPI, so it can be integrated with suitable SPI-capable microcontrollers when the hardware interface and software support are configured correctly.

Arduino: WIZnet documents Arduino use of W5500-based hardware and provides Ethernet software resources.

ESP32: The module can be interfaced with an ESP32 through SPI, subject to correct GPIO assignment, power/wiring and a compatible W5500 software implementation.

STM32: WIZnet provides W5500 driver resources and has published example projects for STM32F103-class hardware, supporting W5500 integration into STM32-based designs.

Compatibility does not mean the module can be connected pin-for-pin to every Arduino, ESP32 or STM32 board. SPI pins, chip-select assignment, power connections and software configuration depend on the host board.

Package Contents

1 × W5500 Ethernet Module

FAQs

1. What is a W5500 Ethernet Module?
The W5500 Ethernet Module is an SPI-based networking module built around the WIZnet W5500 Ethernet controller. It allows compatible microcontrollers and embedded systems to connect to a wired 10/100 Ethernet network through an RJ45 connection.

2. Does the W5500 Ethernet Module work with Arduino?
Yes. W5500-based Ethernet hardware is supported within the Arduino ecosystem. The exact SPI pins, chip-select pin, wiring and software configuration depend on the Arduino board being used.

3. Can I use the W5500 Ethernet Module with ESP32?
Yes. The W5500 can communicate with an ESP32 through SPI when appropriate wiring, GPIO assignments, power connections and compatible software are used.

4. Can the W5500 Ethernet Module be used with STM32?
Yes. The W5500 uses SPI and can be integrated with suitable STM32 microcontrollers. WIZnet also provides W5500 driver resources and STM32-related examples.

5. Does the W5500 support 10/100 Mbps Ethernet?
Yes. The W5500 controller integrates a 10Base-T/100Base-TX Ethernet PHY. Actual application throughput depends on the host MCU, SPI configuration, software and network conditions.

6. How many hardware sockets does the W5500 support?
The W5500 supports up to 8 independent hardware sockets and provides 32 KB of internal TX/RX buffer memory.

7. Which network protocols does the W5500 support?
The W5500 hardwired TCP/IP stack supports TCP, UDP, ICMP, IPv4, ARP, IGMP and PPPoE.

8. Is this W5500 module an Arduino Ethernet Shield?
No. This Chip.pk product is a W5500 Ethernet module/breakout board, not an Arduino shield form-factor board. It connects to a compatible host through its exposed interface pins.

9. Does this W5500 Ethernet Module include an RJ45 connector?
Yes. The actual Chip.pk stock includes a HanRun HR911105A RJ45 Ethernet connector with status LEDs.

10. Where can I buy a W5500 Ethernet Module in Pakistan?
You can buy this W5500 Ethernet Module from Chip.pk for embedded networking, Arduino, ESP32, STM32 and IoT projects in Pakistan, subject to current stock availability.