LILYGO T-RS S3 ESP32-S3 RS232 RS485 Module

The LILYGO T-RS S3 ESP32-S3 RS232 RS485 Module is a powerful industrial-grade communication development board based on the dual-core ESP32-S3 XTensa LX7 MCU. With 8MB of flash memory, built-in Wi-Fi and Bluetooth 5 (LE) support, and wide input voltage (DC 7V~24V), this module is ideal for industrial IoT, automation, and serial communication applications.

Equipped with both RS232 (RSM232MT5V) and RS485 (RSM485MT5V) interfaces, the LILYGO T-RS S3 supports full-duplex high-speed communication ranging from 1200 to 256000bps, and offers 3000V isolation voltage for secure and stable data transmission.

The LILYGO T-RS S3 ESP32-S3 module is compatible with popular development platforms such as Arduino, ESP-IDF, and VS Code, making it flexible and easy to integrate into a wide range of projects. Onboard features include WS2812 LED support, Reset/Boot/IO2 buttons, and a TTL to RS232/RS485 interface—all in one compact form factor.

Whether you're building industrial control systems, data acquisition devices, or smart monitoring solutions, the LILYGO T-RS S3 ESP32-S3 RS232 RS485 Module delivers high performance, reliable connectivity, and exceptional flexibility.

Specifications

Full-duplex high-speed RS232 module

Full-duplex high-speed RS485 module

Sample Code For Reference [Github]

If you need technical support please check below link to find more details.

T-RS S3

Product Display

 Size

 Pin Diagram

Shipping List