Ethernet and PoE Shield for Arduino - W5500 Chipset

Ethernet & PoE Shield for Arduino-W5500 delivers reliable wired networking and power delivery for embedded development. Designed for seamless integration with Arduino development boards, this Ethernet expansion shield combines a WIZnet W5500 hardwired TCP/IP controller with IEEE 802.3at Power over Ethernet capability. The networking shield belongs to the DFRobot Ethernet family and enables stable internet connectivity for IoT gateways, industrial controllers, and remote monitoring systems. A MicroSD slot plus multiple Gravity I/O connectors further extend this Ethernet communication board into a versatile networking and sensor expansion platform.

Hardwired TCP/IP Networking with W5500

Integrated WIZnet W5500 Ethernet controller provides a hardware-based TCP/IP stack that significantly simplifies network implementation in embedded applications. Support covers TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols, enabling reliable communication without heavy microcontroller resource usage. The hardwired networking architecture includes 32KB internal buffer memory for packet processing and supports up to eight independent socket connections simultaneously. This embedded Ethernet controller approach delivers stable communication performance and faster deployment compared with software-based network stacks.

Integrated Power over Ethernet Capability

Built-in IEEE 802.3at compliant PoE design enables both power and data transmission through a single Ethernet cable. The Class 0 PD implementation supports up to 12W power delivery while providing a convenient 12V/1A output through the VIN port. This PoE-enabled networking expansion board reduces wiring complexity in remote installations such as IoT nodes, automation equipment, and industrial monitoring devices. A single network cable therefore handles communication and power supply, simplifying deployment in distributed embedded systems.

Rich Gravity Interface Expansion

Multiple Gravity connectors transform this networking module into a flexible sensor expansion hub. Available interfaces include two Gravity 4‑pin I2C ports, one UART interface, four Gravity 3‑pin digital ports, and four analog input ports for direct sensor integration. The standard Arduino shield form factor ensures compatibility with common controller boards, while functional equivalence with Arduino Ethernet Shield 2 simplifies migration of existing projects. An onboard MicroSD card slot further supports local data logging for networked IoT applications.

High-Speed SPI and Low-Power Operation

Efficient SPI communication supports clock speeds up to 80MHz, allowing high-throughput network communication between the controller and the W5500 Ethernet chip. Advanced SPI protocol optimization improves data transfer efficiency for demanding IoT and automation workloads. Additional power management functions include Wake-on-LAN capability and power-down mode, helping reduce system energy consumption during standby operation while maintaining the ability to remotely wake the device through network activity.

Typical deployment scenarios include IoT gateways, wired sensor networks, industrial monitoring systems, remote data acquisition units, and network-enabled robotics controllers. Combined PoE power delivery, hardware TCP/IP networking, and extensive Gravity interfaces make this Ethernet communication shield a practical platform for rapid development of stable wired IoT infrastructure.

Figure: Interface Function