Ethernet Network Module Wiznet W5500 RJ-45 WoL SPI TCP/IP UDP 2.54mm STM32

W5500 Ethernet Network Module

The Ethernet module based on the modern W5500 chip is an integrated network controller equipped with a hardware TCP/IP stack. It enables easy and stable internet connectivity for embedded systems via the SPI interface. The integrated chip handles MAC and PHY Ethernet 10/100 layers, which greatly simplifies building network devices. The module is an excellent choice for microcontroller-based projects, including Arduino, ESP8266, ESP32, STM32, and Raspberry Pi.

The hardware TCP/IP stack supports the most popular protocols, such as TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE. The chip has 32 kB of internal buffer memory for data communication. Users can implement network applications using simple sockets, with support for up to 8 independent hardware connections simultaneously.

Communication with the external microcontroller takes place via a high-speed SPI interface with a clock frequency of up to 80 MHz. To optimize power consumption, the module includes Wake on LAN and a low-power sleep mode.

Key technical specifications

• Supply voltage: from 3.3 V to 5.5 V
• Chip used: Wiznet W5500
• Buffer memory: 32 kB
• Communication interface: SPI (speed up to 80 MHz)
• Supported protocols: TCP/IP, UDP, ICMP, IGMP, ARP, PPPoE, IPv4
• PHY physical layer: 10BaseT/100BaseTX (10/100 Mb)
• Additional features: Wake on LAN over UDP, Power Down mode
• Connection support: up to 8 sockets simultaneously
• Module dimensions: 55 x 28 x 16 mm
• Connectors: soldered goldpin headers, 2.54 mm pitch

Example applications

• Home automation and smart building systems
• Industrial measurement devices and data loggers
• Microcontroller-based network servers and communication gateways
• Remote monitoring and access control systems
• Educational projects and network prototypes for Arduino, ESP32, or STM32

Benefits

• Significant offload of the main microcontroller thanks to hardware TCP/IP stack support
• High network connection stability compared to software-only solutions
• Fast and hassle-free integration with popular platforms - Arduino, ESP8266, Raspberry Pi
• Energy savings thanks to built-in sleep modes and Wake on LAN
• Easy connection thanks to standard 2.54 mm pin pitch and RJ-45 connector