A compact PoE development board featuring the XIAO ESP32S3 Plus, with an integrated, isolated PoE module and TPS563201-based power conversion that delivers a clean 5V supply to power the microcontroller. Ideal for IoT projects, smart home devices, and industrial automation—where a versatile combination of reliable Ethernet connectivity and low-power wireless processing simplifies installation and enhances system performance.

• ESPHome Ready-Made Project: Zero-Code Setup!
• Seeed Studio is proud to have joined the ESPHome Ready-Made Project. No YAML or coding required—flash your firmware directly via web browser for instant integration.

Featured Devices:

• XIAO Smart IR Mate: Your ultimate Home Assistant infrared hub.
• XIAO W5500 Ethernet Adapter V1.2: Reliable PoE Bluetooth Proxy for Seamless Connectivity.
• Experience seamless setup now at the ESPHome Ready-Made Projects website!
• Explore landing page to discover more plug-and-play, Home Assistant–compatible devices designed for faster deployment and simplified integration.
• High-Performance Microcontroller: Built on the XIAO ESP32S3 Plus platform, our board delivers robust processing power and efficient wireless connectivity, making it ideal for complex IoT and embedded applications.
• Integrated PoE with Isolation & Power Conversion: Featuring a robust PoE module with built-in isolation, the board safely accepts a 12V Ethernet power input. A high-efficiency TPS563201 buck converter then steps the 12V down to a stable 5V rail, providing optimal power to the XIAO ESP32S3 Plus.
• Reliable Ethernet Connectivity: Equipped with an onboard W5500 Ethernet chip and a standard RJ45 jack, the board ensures stable wired network access for seamless data transmission and remote management.
• Versatile I/O Options: With dual-sided I/O outputs, you can easily expand functionality and interface with a range of sensors and peripherals to customize your application to exact specifications.
• Compact & Ready-to-Deploy Design: Combining integrated PoE, isolation circuitry, and Ethernet connectivity in a small form factor, this board simplifies prototyping and enables efficient deployment in smart home, industrial automation, or network appliance projects.

Note:

• Early Build provides beta products (featuring 3D-printed cases) and evolving software before final release. We welcome your feedback and suggestions to shape the product's evolution. Enjoy exploring!
• This V1.2 features an INT pin wiring fix (D16 → W5500 INTn), enabling active Bluetooth proxy functionality in ESPHome.

Specifications:

• MCU: XIAO ESP32-S3 Plus
• Antenna: 2.4GHz rod antenna (2.81 dBi gain)
• USB Type-C: 5V input power support
• PoE Chip: MQ7813T120
• PoE Standard: IEEE 802.3af compliant
• PoE Output: 12V / 1.1A
• Efficiency: Up to 86% (48V input, 12V @ 1.1A load)
• Ethernet Chip: WIZnet W5500
• Ethernet Interface: RJ45 connector
• Network Speed: 10/100 Mbps
• Supported Protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
• LED Indicators:
• Power LED × 1
• User LED × 1
• Button: Reset button
• I/O Interfaces (XIAO ESP32-S3 Plus):
• D0, D2, D3, D4, D5, D6, D7
• D11, D12, D13, D14, D15
• D17, D18, D19
• W5500 Interrupt pin: D16
• Product Dimensions: 83 × 118 × 26 mm
• Product Weight: 75 g
• Enclosure: 3D-printed (white casing)

Hardware Overview:

Note Change Record

2025/12/1, This V1.2 features an INT pin wiring fix (D16 → W5500 INTn), enabling active Bluetooth proxy functionality in ESPHome.

Applications:

• Industrial Automation
• Network Control
• Smart Home & Building Automation
• Remote Monitoring
• Surveillance

Documents

• Printables
• Thingiverse'

Certification:

• HSCODE 8517629990
• USHSCODE 8517620010
• UPC
• EUHSCODE 8517180000
• COO CHINA

Package Includes:

• 1 x XIAO W5500 Ethernet Adapter
• 1 x 2.4GHz Rod Antenna (2.81dBi) for Seeed Studio XIAO