---
title: "LILYGO T-ETH-ELite ESP32-S3 Ethernet Development Board"
url: "https://maker.wiznet.io/bruno/resellers/lilygo-t-eth-elite-esp32-s3-ethernet-development-board/"
markdown_url: "https://maker.wiznet.io/bruno/resellers/lilygo-t-eth-elite-esp32-s3-ethernet-development-board/md"
type: "VAR: Value-Added Reseller Products"
author: "lilygo"
author_url: "https://www.facebook.com/ebokify/photos/lilygo-t-eth-elite-esp32-s3-ethernet-development-board-w5500-module-scalable-t-s/122173843802767319/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "lilygo"
original_url: "https://www.facebook.com/ebokify/photos/lilygo-t-eth-elite-esp32-s3-ethernet-development-board-w5500-module-scalable-t-s/122173843802767319/"
published: "2025-11-13"
language: "en"
likes: 0
views: 797
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# LILYGO T-ETH-ELite ESP32-S3 Ethernet Development Board

> ESP32-S3-WROOM-1 + W5500 Module

Original author: lilygo (source: https://www.facebook.com/ebokify/photos/lilygo-t-eth-elite-esp32-s3-ethernet-development-board-w5500-module-scalable-t-s/122173843802767319/)

## Documents and links

- [GitHub](https://github.com/Xinyuan-LilyGO/LilyGO-T-ETH-Series) (code): Source code provided by lilygo

## Article

![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/T-ETH_ELITE_1.jpg?v=1740477918)

## Building a Hybrid Ethernet + Wi-Fi IoT Gateway with LILYGO T-ETH ELite and WIZnet W5500

WIZnet is well known for its hardwired TCP/IP Ethernet controllers such as **W5500**, which are widely used in reliable, wired IoT and industrial products.

In this post, I introduce a **new development board that integrates our W5500 directly on the PCB**: the **LILYGO T-ETH ELite**. By combining an ESP32-S3 module with W5500 Ethernet, PoE, and a stackable expansion ecosystem, this board makes it very easy to build **hybrid wired + wireless IoT gateways**.

### 1. What is the LILYGO T-ETH ELite?

The **LILYGO T-ETH ELite** is an ESP32-S3 based IoT development board that integrates:

**ESP32-S3-WROOM-1** module (dual-core LX7 MCU with Wi-Fi 2.4 GHz and Bluetooth LE 5)

**WIZnet W5500** SPI-to-Ethernet controller providing 10/100 Mbps Ethernet with hardware TCP/IP offload

**PoE (Power over Ethernet)** support (IEEE 802.3af, around 36–57 V input) so a single Ethernet cable can provide both power and data

**16 MB Flash + 8 MB PSRAM** for more complex applications and networking stacks

**40-pin GPIO header** with a Raspberry Pi–compatible layout for stackable shields (LoRaWAN, cellular, etc.)

**MicroSD / TF card slot**, USB-C, user LEDs, reset/boot buttons, and USB-OTG switch

From WIZnet’s perspective, the key point is simple:

> This board is a **ready-made W5500 Ethernet platform with modern Wi-Fi/BLE and PoE in one small form factor**.

The official public GitHub repository **“LilyGO-T-ETH-Series”** provides board definitions, Arduino/PlatformIO examples, and ESP-IDF code for the various T-ETH family boards, including T-ETH ELite.

### 2. Why is it “new” and worth introducing?

**New in our W5500 ecosystem**

This is not a simple breakout board. T-ETH ELite combines **W5500 + ESP32-S3 + PoE + stackable shields** on a single board.

Compared to traditional W5500 Arduino shields, this board targets more advanced, **edge-gateway-class applications** (multiple radios, more memory, secure connections, etc.).

**Hybrid netwo**

Many ESP32 boards rely only on Wi-Fi/BLE. Here we get **wired Ethernet (W5500) and Wi-Fi/BLE at the same time**.

This hybrid design is especially useful when you need a **stable wired uplink** and **flexible local wireless** network.

**PoE + stackable expansion = gateway platform**

PoE means easier installation: just one cable for power and data, ideal for ceilings, hallways, factory lines, and remote locations.

The 40-pin header is compatible with stackable shields (LoRaWAN, cellular, camera, etc.), which are documented in the T-ETH series repo and community resources.

This naturally leads to **new application classes**: LoRaWAN gateways, remote monitoring nodes, edge data loggers, etc.

**Community and external attention**

The T-ETH series GitHub repo is active and maintained, with multiple contributors and many example sketches (MQTT, HTTP, TCP/UDP, LoRa, sensors, etc.).

Tech blogs and news sites have highlighted this class of board as a compact solution combining **Ethernet PoE, Wi-Fi/BLE, and expansion shields** for industrial and hobby projects.

So, introducing T-ETH ELite on maker.wiznet.io is not just “yet another dev board review”.
It is a **new platform in the WIZnet ecosystem** that demonstrates:

How W5500 can be used in **modern ESP32-S3 designs**

How **PoE + multi-radio hardware** opens the door to new high-value IoT applications

### 3. Hardware overview

#### 3.1 Key components

**MCU**: ESP32-S3-WROOM-1 (dual-core, up to 240 MHz, Wi-Fi 4 and BLE 5)

**Ethernet**:

WIZnet **W5500** SPI-to-Ethernet controller

10/100 Mbps RJ-45 connector

Supports common protocols such as TCP, UDP, IPv4, ARP, PPPoE, ICMP (through W5500’s hardware engine)

**PoE**:

IEEE 802.3af compliant

~36–57 V input range via PoE, step-down to 5 V for the board

**Memory**: 16 MB flash, 8 MB PSRAM

**Expansion**:

40-pin header (Raspberry Pi-style pinout) for stackable shields

Up to ~23 GPIOs, UART, USB 2.0, 5 V, 3.3 V, and GND exposed

Shields for LoRa, cellular (NB-IoT, LTE), and other functions are available in the ecosystem.

**Storage & I/O**:

MicroSD/TF card slot

USB-C connector for power and programming

Reset and boot buttons, user LED, power LEDs, USB-OTG switch

#### 3.2 Positioning in the WIZnet ecosystem

From WIZnet’s view, T-ETH ELite can be seen as:

A **W5500 reference platform** that already includes:

High-performance MCU

Rich wireless connectivity

Power options (USB, PoE)

Expansion header

This makes it ideal for sample projects, demos, and **real-world prototypes** that show W5500 in practical, modern applications.

### **Specifications**

| MCU | ESP32-S3R8 Dual-core LX7 microprocessor |
| --- | --- |
| Wireless Connectivity | 2.4 GHz Wi-Fi & Bluetooth 5 (LE) |
| Development | Arduino, PlatformlO-IDE, ESP-IDF |
| Flash | 16MB |
| PSRAM | 8MB |
| Size | 50 X 67mm |
| USB Charging | 5V 500mA |

**W5500 Ethernet Module**

| Supports Protocols | TCP, UDP, ICMP, IPv4, ARP, PPPoE |
| --- | --- |

---

Source: https://maker.wiznet.io/bruno/resellers/lilygo-t-eth-elite-esp32-s3-ethernet-development-board/