UCC

A Blue Pill firmware prototype streams dual ADC samples through DMA buffers to a TCP server using an Arduino Ethernet stack.

picokubelet is a Rust firmware project that makes an ESP32-S3 board appear as a Kubernetes worker node to a real k3s cluster.

The HKL-EM16-S3 project is an ESP32-S3 industrial controller example-code repository for testing board peripherals, web control, automation interfaces, and wire

PicoTuner Ethernet Interface

Central_Heating_Arduino_MQTT_Home_Assistant

MeshCom is a LoRa/APRS off-grid messaging network for amateur radio, extended through W5500/W5100S Ethernet gateways to HAMNET or IP networks.

Raspberry Pi Pico LAN Tester

REMS-RTA

nRF Connect SDK

Verilog/SystemVerilog FPGA firewall on DE1-SoC + W5500 MACRAW. Parses IPv4/TCP/UDP, applies 4-rule engine, inline two-W5500 forwarding verified with SHA-256 fil

ESP32 + W5500 MACRAW in Rust. smoltcp builds raw ARP frames sent over Ethernet, verified by Wireshark. First step toward a dual-W5500 network loop detector.

Failed To Build The Hex File For Ethernet (W5500 controller) connection

This article explains how embedded systems use the WIZnet W5500 Ethernet controller to communicate with MQTT-based IoT cloud platforms.

This article explains how an embedded system integrates W5500 Ethernet with an MCU and external smart module to communicate with an MQTT IoT cloud.

Bruce Firmware uses ESP32-S3 and WIZnet W5500 for wired Ethernet security tests, including DHCP, ARP scanning, SSH, and port scanning on wired LANs.

https://github.com/AkifAkar/wheel_controller_pid_roboclaw

rp2350B-industrial-pcb

Hunet sensor monitoring

Firmware that bridges Ethernet and WiFi AP at Layer 2, keeping clients on one subnet without NAT or routing.

EthernetEspAT maps Arduino Ethernet API to ESP AT, enabling WIZ850io/W5500 wired HTTPS for small Arduino boards.

An IoT lifeline system monitors PPE connection, user position, shock absorber status, and safety alerts through sensors, gateways, cloud software, and reports.

A scalable epidemiological platform that goes beyond analysis, integrating WIZnet-based IoT data collection for real-time infectious disease response.

This article explains how the WIZnet W5500 manages TCP data transmission at the buffer and register level.

This article explains the complete end-to-end communication workflow of a W5500-based embedded system in industrial IoT environments.