LILYGO T-ETH-Lite S3

Introduction

T-ETH-Lite ESP32-S3 is an embedded development module based on the ESP32-S3 chip, integrating Ethernet communication, TF card storage expansion, and multiple peripheral interfaces. Its core configuration includes 16MB Flash and 8MB PSRAM, supporting high-speed data processing and storage. The module features a W5500 Ethernet controller that enables stable network connectivity, accessible via control pins such as ETH_CS and ETH_INT.

It offers a wide range of GPIO interfaces (e.g., GPIO00–GPIO20, GPIO38–GPIO46), supporting ADC channels, touch inputs (TOUCH03–TOUCH08), and dedicated output control pins (GK_OUT1/GK_OUT2), making it highly adaptable to sensors, actuators, and other peripherals. In addition, it provides a TF card slot (via SPI interface) and supports an optional PoE expansion board, making it ideal for IoT endpoints, industrial control systems, and other scenarios requiring extensibility and low-power design.

Appearance and function introduction

Appearance

Pinmap

Module Information and Specifications

Description

Note: T-ETH-Lite is the ESP32-S3 version. Click here to switch to the ESP32 version T-ETH-Lite S3 version

Related Links

Github:T-ETH-Lite

• DP9900M
• DP5300

Schematic Diagram

• T-ETH-Lite

Dependency Libraries

• Adafruit_BME280_Library
• Adafruit_BusIO-1.16.1
• Adafruit_NeoPixel
• Adafruit_Sensor
• ESP32_USB_Stream
• ETHClass2
• LoRa
• ModbusMaster
• RadioLib
• StreamDebugger
• TFT_eSPI
• TinyGPSPlus
• TinyGSM
• U8g2

Software Design

Arduino Set Parameters

Development Platform

1. ESP-IDF
2. Arduino IDE
3. VS Code
4. Micropython

Product Technical Support