LILYGO T-RS S3
ESP32-S3 industrial communication board with isolated RS-232 and RS-485 modules (3000V isolation), 7–24V DC input via DB9 connector, Wi-Fi, and Bluetooth 5 LE for Modbus and industrial serial networking applications.
$22.48
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Specifications
Components
Isolated RS-232 serial communication module with 3000V isolation and 1200–256000bps baud rate range
Isolated RS-485 serial communication module with 3000V isolation, 5V/50mA output, 1200–256000bps baud rate range
Bus Interfaces
Overview
The LILYGO T-RS S3 is an industrial-grade communication development board built around the ESP32-S3 dual-core Xtensa LX7 MCU with 8MB Flash, Wi-Fi, and Bluetooth 5 LE. It integrates two galvanically isolated serial communication modules: an RSM232MT5V RS-232 module and an RSM485MT5V RS-485 module, both with 3000V isolation voltage and 5V/50mA isolated output, supporting baud rates from 1200 to 256000 bps. Power input is 7–24V DC through a DB9 female connector, enabling direct industrial panel mounting. An onboard WS2812 RGB LED on GPIO1 and buttons for Reset, Boot, and IO2 round out the interface. The board is suitable for Modbus RTU gateways, industrial automation nodes, and SCADA edge devices.
Use Cases
4Industrial Automation
Boards designed or suitable for industrial control, automation, and embedded systems in harsh environments.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
IoT Gateway
Acting as a local IoT gateway that aggregates data from sensors, runs MQTT broker, Node-RED, or Home Assistant, and bridges to the cloud.
Field Data Logger
Battery-powered device for recording sensor data, GPS coordinates, and environmental measurements in the field.
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