UCC

MoE firmware turns Arduino/WIZnet Ethernet Shield nodes into MIDI-over-LAN devices with UDP beacons, channel subscriptions, and PC-side routing.

Haljion shows Raspberry Pi Pico 2W using Adafruit W5500 over SPI and CircuitPython MiniMQTT to subscribe to a local broker over wired LAN.

Ocupoint rf-control uses W55RP20 Ethernet and Go protobuf tools to configure Black Canyon, STRAPS, and Whalepod RF frontends.

Industrial Relay

The W55MH32 development board Xiaozhi AI project represents an important step in bringing large language model interaction into embedded hardware through stable

A platform-independent Rust driver for WIZnet W6100, using SPI DMA, interrupt-driven service, and lock-free socket data paths.

AAS_Dev adds AAS metamodel, MQTT, HTTP, and W5500 Ethernet paths to MUFFIN firmware for MODLINK/MT11 industrial gateway development.

OEE_Public uses ESP32-S3, W5500 Ethernet, SD logging, FastAPI, SQLite, and React to move factory machine states into an OEE dashboard.

Arduino sketch to read the status of up to 4 security sensors using End Of Line resistors and push events to MQTT

It's just ridiculous the price for an IP KVM solution. I simply can't get accept that! So, this is a poor man IP KVM that works pretty well, and allows one to g

A Raspberry Pi Pico, W5500, INMP441, TFLite Micro, and CallMeBot path detects fire alarm audio locally and sends WhatsApp alerts over Ethernet.

BACnetLight

MqttTemplates

netclient

US11269308B2 lists a generic Ethernet Shield in a smart PLC architecture. Arduino W5100/W5500 shields show one possible WIZnet path.

Flexi-Ninja is a fork of stepper-ninja for Expatria's hardware. Flexi-Ninja replaces the breakout board abstraction with a PlatformIO based build system and boa

HWANHEE NET-CHECKER: ESP32+W5500 handheld LAN tester for quick on-site IP, gateway, DNS, and loop checks.

Probe, read and write SPI flash with ESP32

ESP32 based vending machine controller board with Ethernet, Wi-Fi, and 4G LTE connectivity

Multi-functional Poly-phase (3-phase, single-phase) Poer Meter using ESP32 and ADE78xx AFE

A single PoE cable delivers power, control, and 1080p live video — automatically. Here's how we built a GoPro-to-Ethernet bridge with BLE, a Wi-Fi Soft-AP, and

open-source lighting platform that transforms an ESP32 into a professional lighting controller supporting Art-Net, sACN, DMX512

A production-grade firmware architecture that brings together MQTT, Wiegand readers, RS485 devices, I2C LCD, RTC, and SD card storage — all running on a single

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)