---
title: "WIZnet Ethernet HAT"
url: "https://maker.wiznet.io/products/wiznet-ethernet-hat/"
markdown_url: "https://maker.wiznet.io/products/wiznet-ethernet-hat/md"
type: "WIZnet product hub"
projects: 41
language: "en"
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# WIZnet Ethernet HAT

> Ethernet add-on board with the W5100S chip for the Raspberry Pi Pico.

## Projects and products using WIZnet Ethernet HAT

- [How to Build a Networked Serial Console with WIZnet W5100S on Raspberry Pi Pico?](https://maker.wiznet.io/viktor/projects/how-to-build-a-networked-serial-console-with-wiznet-w5100s-on-raspberry-pi-pico/) (UCC, 2026-08-17): PICOTTY turns Raspberry Pi Pico or Pico 2 boards into networked serial-console nodes for headless computers.
- [micro-ROS Arduino Simpler (STM32 + W5100S HAT)](https://maker.wiznet.io/Benjamin/projects/running-micro-ros-arduino-with-an-spi-ethernet-module-stm32f4-arduino-ros2-w5100s/) (UCC, 2025-12-05): Runs micro-ROS on STM32 using W5100S SPI Ethernet. It enables ROS 2 connectivity via PlatformIO on boards lacking native LAN support.
- [JMRITrainNode](https://maker.wiznet.io/Aimee0/projects/jmritrainnode/) (UCC, 2025-09-17): A Raspberry Pi Pico-based I/O node that lets JMRI (model-railroad control software) talk to up to 16 accessories—servos, NeoPixels, relays, etc.—over MQTT.
- [1 MCU, 2 WIZnet Chips: Dual SPI Networking on STM32](https://maker.wiznet.io/TheoIm/projects/1-mcu-2-wiznet-chips-dual-spi-networking-on-stm32/) (WCC, 2024-11-26): This project utilizes an W5100S-EVB(STM32 MCU Board) to manage 2 W5100S chips via separate SPI interfaces, enabling concurrent network operations from a single
- [Embedded Age & Gender Detection with Raspberry Pi Pico & WIZnet Ethernet HAT](https://maker.wiznet.io/Benjamin/projects/embedded-age-gender-detection-with-raspberry-pi-pico-wiznet-ethernet-hat/) (WCC, 2024-03-26): Embedded Age & Gender Detection with Raspberry Pi Pico & WIZnet Ethernet HAT
- [WIZnet Ethernet HAT + Raspberry Pi Pico](https://maker.wiznet.io/Benjamin/projects/wiznet-ethernet-hat-raspberry-pi-pico/) (UCC, 2024-01-24): WIZnet Ethernet HAT is a Raspberry Pi Pico pin-compatible board that utilizes the W5100S controller. The Ethernet HAT supports both 3.3V and 5V.
- [pico (vkottler)](https://maker.wiznet.io/matthew/projects/pico-vkottler/) (UCC, 2023-11-01): A firmware project for Raspberry Pi microcontrollers.
- [BLE Beacon Scanner Integration with Raspberry Pi Pico W, WIZnet Ethernet HAT, and AWS IoT Core](https://maker.wiznet.io/mason/projects/ble-beacon-scanner-integration-with-raspberry-pi-pico-w%2C-wiznet-ethernet-hat%2C-and-aws-iot-core/) (WCC, 2023-09-15): BLE beacon scanner using Raspberry Pi Pico W & Wiznet Ethernet HAT for real-time, secure, & energy-efficient data transmission to AWS IoT Core
- [Simple MQTT project with Pico and Ethernet-Hat using Prompt (feat W5100S-EVB-PICO)](https://maker.wiznet.io/scarlet/projects/simple-mqtt-project-with-pico-and-ethernet-hat-using-prompt-feat-w5100s-evb-pico/) (WCC, 2023-08-14): We developed an MQTT RGB lamp using Pico, WIZnet W5100S, & Pico Bricks. Learn about the prompt & process for Chat GPT's 'code interpreter'.
- [Pico Remote control Lamp (coded with chatGPT prompt)](https://maker.wiznet.io/scarlet/projects/pico-remote-control-lamp/) (WCC, 2023-08-11): This project showcases control and lamp devices for adjusting lamp color and brightness via MQTT, with info display on OLED.
- [Twitter bot using RPi Pico, Ethernet HAT and IFTTT](https://maker.wiznet.io/viktor/projects/twitter-bot-using-rpi-pico%2C-ethernet-hat-and-ifttt/) (WCC, 2023-07-31): This project aims to guide how to createTwitter bot using RPi Pico, Ethernet HAT and IFTTT that will post automatically.
- [How to Connect Raspberry Pi Pico to Twitter using Ethernet HAT and IFTTT](https://maker.wiznet.io/viktor/projects/how-to-connect-raspberry-pi-pico-to-twitter-using-ethernet-hat-and-ifttt/) (WCC, 2023-07-18): This projects aims to guide how to connect Rpi Pico to Twitter with help of WIZnet Ethernet HAT, IFTTT and Micropython
- [BLE-to-Ethernet Central](https://maker.wiznet.io/viktor/projects/ble-to-ethernet-central/) (WCC, 2023-06-16): This project is aimed to demonstrate how to turn Pico W into BLE-to-Ethernet central using WIZnet products
- [환경 모니터링 스마트 시계 / environmental monitoring smart watch](https://maker.wiznet.io/gemma/projects/%ED%99%98%EA%B2%BD-%EB%AA%A8%EB%8B%88%ED%84%B0%EB%A7%81-%EC%8A%A4%EB%A7%88%ED%8A%B8-%EC%8B%9C%EA%B3%84-environmental-monitoring-smart-watch/) (UCC, 2023-04-26): 환경 모니터링 스마트 시계
- [VSCP TCP/IP Link Protocol Demo](https://maker.wiznet.io/austin/projects/vscp-tcp-ip-link-protocol-demo/) (UCC, 2023-03-30): VSCP TCP/IP Link Protocol Demo for WIZnet W5100S HAT on a Raspberry Pi Pico
- [WIZnet Ethernet HAT and LAN8720 Eth Board loopback speed comparison](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat-and-lan8720-eth-board-loopback-speed-comparison/) (UCC, 2023-02-20): WIZnet Ethernet HAT and LAN8720 Eth Board loopback speed comparison
- [WIZcube Ecosystem: PLC, CNC, HMI, INTELLIGENT EDGE and much more](https://maker.wiznet.io/WIZnet/projects/wizcube-ecosystem%3A-plc%2C-cnc%2C-hmi%2C-intelligent-edge-and-much-more/) (UCC, 2023-02-17): Ethernet HAT Contest Project Winner
- [Be Awake ! IP Hardwired Nurse Call System](https://maker.wiznet.io/WIZnet/projects/be-awake-%21-ip-hardwired-nurse-call-system/) (UCC, 2023-02-17): Ethernet HAT Contest winner project
- [AI-driven IoT 3D Printer Motion & Status Tracker w/ Telegram](https://maker.wiznet.io/WIZnet/projects/ai-driven-iot-3d-printer-motion-status-tracker-w-telegram/) (UCC, 2023-02-17): Ethernet HAT Contest winner project
- [Real-time Lab monitoring using TinyML](https://maker.wiznet.io/WIZnet/projects/real-time-lab-monitoring-using-tinyml-by-WIZnet/) (UCC, 2023-02-17): Ethernet HAT Contest winner project
- [WIZnet Ethernet HAT\[RP2040\] + HTTP WebServer](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-http-webserver/) (UCC, 2023-02-16): A source from which a WIZnet Ethernet module becomes an HTTP server and another module becomes a Client.
- [WIZnet Ethernet HAT\[RP2040\] + SNTP](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-sntp/) (UCC, 2023-02-16): The Wiznet Ethernet module accesses the NTP server and obtains time information.
- [WIZnet Ethernet HAT\[RP2040\] + MQTT publish \[mosquitto\]](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-mqtt-publish-%5Bmosquitto%5D/) (UCC, 2023-02-16): Source where the WIZnet Ethernet module becomes an MQTT publisher and another module becomes a Client.
- [WIZnet Ethernet HAT\[RP2040\] + DNS](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-dns/) (UCC, 2023-02-16): This project that returns IP Address when a domain name is entered in the DNS server.
- [WIZnet Ethernet HAT\[RP2040\] + HTTP WebClient](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-http-webclient/) (UCC, 2023-02-16): The source from which the Wiznet Ethernet module becomes an HTTP klin and accesses the server.
- [WIZnet Ethernet HAT\[RP2040\] + Loopback](https://maker.wiznet.io/WIZnet/projects/wiznet-ethernet-hat%5Brp2040%5D-loopback/) (UCC, 2023-02-16): WIZnet Ethernet HAT[RP2040] + Loopback
- [Raspberry PI Pico Ethernet Port: adding the WIZNET Ethernet HAT](https://maker.wiznet.io/WIZnet/projects/raspberry-pi-pico-ethernet-port%3A-adding-the-wiznet-ethernet-hat/) (UCC, 2023-02-07): Raspberry PI Pico works greatly to keep sensors measurements, combining/analyzing them and delivering data to external world.
- [Smart Plant application – WIZnet Ethernet HAT + Raspberry PI PICO](https://maker.wiznet.io/WIZnet/projects/smart-plant-application-%E2%80%93-wiznet-ethernet-hat-raspberry-pi-pico/) (UCC, 2023-02-07): Smart Plant application
- [Ethernet HAT long pin socket installation (Ethernet HATのロングピンソケット取り付け)](https://maker.wiznet.io/mason/projects/ethernet-hat-long-pin-socket-installation-ethernet-hat%E3%81%AE%E3%83%AD%E3%83%B3%E3%82%B0%E3%83%94%E3%83%B3%E3%82%BD%E3%82%B1%E3%83%83%E3%83%88%E5%8F%96%E3%82%8A%E4%BB%98%E3%81%91/) (UCC, 2023-01-30): Attach a long-pin socket to Wiznet's Ethernet-HAT.
- [Create a weather checker](https://maker.wiznet.io/taylor/projects/create-a-weather-checker/) (UCC, 2022-11-16): What I wanted to create was to automatically acquire weather forecast data
- [Raspberry Pi Pico: Wi-Fi + Wired](https://maker.wiznet.io/viktor/projects/raspberry-pi-pico%3A-wi-fi-wired/) (UCC, 2022-10-11): Raspberry_Pi Pico W running Adafruit #CircuitPython 8 beta + WiznetTeam W5100S Ethernet Hat
- [RP2040 + (WiFi or Ethernet)](https://maker.wiznet.io/gemma/projects/rp2040-wifi-or-ethernet/) (UCC, 2022-09-27): Introduction of products combining WiFi and Ethernet in RP2040.
- [AI-driven IoT 3D Printer Motion & Status Tracker w/ Telegram](https://maker.wiznet.io/mayuri/projects/AIdriven-IoT-3D-Printer-Motion-amp-Status-Tracker-w-Telegram/) (UCC, 2022-04-22): AI-driven IoT 3D Printer Motion & Status Tracker w/ Telegram
- [Micropython on Wiznet](https://maker.wiznet.io/andrewleech/contest/micropython-on-wiznet/) (Contest, 2022-03-23): Micropython on Wiznet
- [WIZcube Ecosystem: PLC, CNC, HMI, INTELLIGENT EDGE and much more …](https://maker.wiznet.io/vorrias/contest/wizcube/) (Contest, 2022-02-18): WIZcube Ecosystem: PLC, CNC, HMI, INTELLIGENT EDGE and much more …
- [Smart Farm](https://maker.wiznet.io/peppe8o/contest/smart-farm-2/) (Contest, 2022-02-17): Smart Farm
- [Be Awake ! IP Hardwired Nurse Call System](https://maker.wiznet.io/amalmathewtech/contest/be-awake-ip-hardwired-nurse-call-system/) (Contest, 2022-02-13): Be Awake ! IP Hardwired Nurse Call System
- [WIZnet Ethernet HAT - Module for Raspberry PI Pico](https://maker.wiznet.io/taylor/projects/WIZnet-Ethernet-HAT-Module-for-Raspberry-PI-Pico/) (UCC, 2022-02-07): WIZnet Ethernet HAT - Module for Raspberry PI Pico
- [AI-driven IoT 3D Printer Motion & Status Tracker w/ Telegram](https://maker.wiznet.io/kutluhan_aktar/contest/iot-3d-printer-movement-and-status-monitor-w-telegram/) (Contest, 2022-01-26): AI-driven IoT 3D Printer Motion & Status Tracker w/ Telegram
- [Real-time Lab monitoring using TinyML](https://maker.wiznet.io/rahulkhanna/contest/real-time-lab-monitoring-using-tinyml-by-rahulkhanna/) (Contest, 2022-01-15): Real-time Lab monitoring using TinyML
- [VSCP reference design](https://maker.wiznet.io/grodansparadis/contest/vscp-referenece-for-furnace-monitoring/) (Contest, 2022-01-11): VSCP reference design

---

Source: https://maker.wiznet.io/products/wiznet-ethernet-hat/