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A multitasking ZX Spectrum OS drives WIZnet's W5300 using plain Z80 IN/OUT instructions, enabling ping, telnet, browsing, and network games.

Custom RP2354B computer runs its own OS and drives WIZnet W5100S directly over SPI, implementing hardware sockets, blocking I/O, and a TCP server.

ESP-WiFiWatch passively scans neighbors' Wi-Fi for sudden outages while WIZnet's W5500 Ethernet handles all management, keeping the monitor independent of what

Cloud-free smart meter tracker using ESP32-C3 and optional W5500 Ethernet, with Wi-Fi fallback and local APIs for Home Assistant, MQTT, and more.

CRANTROL is an ESP32-S3 and W5500 Ethernet remote control platform with 10-channel relay control, Flutter mobile app, Firebase sync, and captive portal setup.

Huawei EMMA dials out over TLS as the TCP client, so a normal Modbus server cannot answer it. A W5500 gives that reverse link its own isolated LAN.

Cyclone V FPGA에 구현한 2채널 디지털 락인 증폭기. 잡음 속 미약 신호의 크기·위상차를 실시간 측정해 W5500 TCP로 호스트 PC에 스트리밍합니다.

A from-scratch RISC-V "computer" on FPGA (CPU + OS + software). The W5500 is driven by a custom FPGA SPI master, mapped into MMIO for Ethernet.

An ESPHome component that reads Pylontech battery racks (US2000/3000/5000) over the console port, with optional W5500 wired Ethernet for stable monitoring.

A PV-system bridge with an ESP32-C6 as its "brain": W5500 wired Ethernet talks MQTT to Victron, while Zigbee exposes battery values to Home Assistant.

BASIX is an open-hardware PIC18 controller integrating W5500 Ethernet, RS-485, isolated I/O, analog inputs, relays, EEPROM, and RTC for automation.

Industrial Arduino-compatible controller with Ethernet, RS485, relays, and I/O for building automation, monitoring, and smart control applications.

An FPGA-based Slow Control Interlock System on a Cologne Chip GateMate FPGA that ingests measurement data over UDP via dual WIZnet W5500 modules (RX/TX).

ardware-accelerated Tetris on a Spartan-7 FPGA + MicroBlaze by @michaelxu2288, with a VGA/audio pipeline and two-player UDP Ethernet over a WIZnet W5500 Pmod.

FPGA firewall (Arty Z7-20 + W5500) by a Romania-based author @StefanGutu. Detects IP/ARP spoofing with HW rule-based filtering and a WebSocket monitor.

Arduino Mega 2560 firmware for a 4-cell Li-ion BMS by @QDarkRex, with per-cell protection and a W5500 Ethernet web dashboard + REST API. (from Indonesia)

An ESP32-S3 fork of Battery-Emulator by @sulfurvinter that repurposes EV packs for home storage, adding web-configurable GPIO, dual CAN-FD, and W5500 Ethernet.

ADAS prototype: STM32+RPi FreeRTOS control (SCC/LFA/MCB), ported to a Telechips VCP-G board with W5500 Ethernet. Educational project.

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.

Monitor voltage, current, power and energy in real time using ESP32-S3, AI-ready analytics and Ethernet connectivity for industrial IoT applications.

An innovative XR-FreeD to UDP tracking system powered by Wiznet NanoBanana, enabling real-time, low-latency camera data stream for virtual production.

PipeInspect drives a dual-steer pipe inspection robot over W5500 Ethernet on ESP32-C3, keeping commands wired while SJ4000 video streams over Wi-Fi

Capability-based, trust-nothing OS architecture on a W65C816S CPU card + ECP5 FPGA fabric. W5500 handles netboot/NTP during Rev A bring-up.

Open-source software-defined lighting controller using ESP32 + WIZnet W5500. Offline-first, MQTT-native with Home Assistant auto-discovery.