UCC

Jesse Hills turns an M5Stack CoreS3 and W5500 PoE base into a touchscreen tester for link, DHCP, IPv6 and ping, after fixing a shared SPI bus in ESPHome.

solis-shelly-sdm630-bridge

wireless-ac-automation-esp32

ZoneTherm combines seven OpenTherm thermostats, configurable valve groups and W5500 Ethernet for local zone control and Home Assistant integration.

JimBoHa adds BACnet objects, priority-aware relay commands and authenticated Ethernet updates to a Waveshare ESP32-S3 controller with W5500.

Weidos doesn't use the W5500 as a plain Ethernet PHY/interface. Its official Ethernet.h-based library talks directly to the W5500's hardware TCP socket (TOE).

Ooznest board support in grblHAL/ESP32 routes Telnet, WebSocket, FTP and WebUI over a W5500 SPI Ethernet link on the ESP32-S3, with Wi-Fi compiled alongside.

Surat factory WiFi is unreliable, so the EaseEmbro MES gives its ESP32-S3 fingerprint terminal a W5500 wired Ethernet option. The platform runs 33 factories.

A peer-reviewed 2026 paper wires an ESP32, three PZEM-004T sensors, and a W5500 Ethernet module into the BMKG Sleman station LAN to log 3-phase kWh in MySQL.

Five: Modbus TCP, S7, PROFINET DCP, OPC UA and EtherNet/IP. This ESP32-S3 firmware runs the W5500 in promiscuous mode to read Layer 2 frames.

In this open KiCad gateway an ADIN1110 holds the 10BASE-T1L pair and a W5500 carries it onto standard Ethernet, both on one ESP32-S3 over separate SPI buses.

ULSTU put a W5500 on the ESP32 board of its Ackermann teaching robot, so a Jetson AGX Xavier sends JSON-RPC drive commands and reads IMU data over wired UDP.

hexinttp's ESP-IDF firmware maps Modbus RTU and TCP registers to named points, publishes them over MQTT, and serves 11 MCP tools, with W5500 as default route.

YamBMS is an ESPHome project that merges parallel BMS units into one battery for the inverter. Its two ESP32-S3 Ethernet board files both configure a W5500.

BREMA firmware makes busware's TUL KNX stick answer MCP over HTTP, so an agent can commission KNX devices. A PoE W5500 extension is the wired path.

HeyWillow packages trained WakeNet models for Willow devices, while an external W5500 option connects the voice terminal to local services.

ESP32_W5500_device

servimetro-esp32

BACnetLight

Nova---a-LoRa-Mesh-System

An ESP32 paired with a WIZnet W5500 passively sniffs LLDP/CDP packets from the Ethernet cable

Two-tier LAN relay control by @anhtn1980 (developed in Vietnam). ESP32+W5500 web UI bridges TCP to an Arduino MEGA2560+W5500 driving 16 RS485 relays.

s7comm-auditor-tool

esparagus-snapclient-fork