# LILYGO T-Connect Pro

> ESP32-S3 three-board stack with SX1262 LoRa, CAN, RS485, RS232, Ethernet (W5500), relay, capacitive touch LCD, and DC input — a versatile industrial IoT gateway with long-range wireless.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** dev-board
- **Price:** ~$60.74
- **Product Readiness:** developer
- **CPU:** ESP32-S3-R8 Xtensa LX7 dual-core @ 240MHz
- **CPU Architecture:** Xtensa LX7
- **CPU Cores:** 2
- **RAM:** 512KB SRAM
- **PSRAM:** 8MB
- **Flash:** 16MB
- **USB:** USB-C
- **Power:** 5-12V DC
- **Operating Voltage:** 3.3V
- **Display:** 222×480px LCD (optional) LCD TFT (optional)

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 5.0
- **Ethernet:** 10/100 Mbps W5500
- **Lora:** SX1262 433/868/915/920MHz

## Open Source

- **Firmware:** No
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

arduino, platformio, micropython

## Use Cases

- industrial-automation
- iot-gateway
- lora-mesh-networking
- wired-networking

## Components

- **ESP32-S3R8** (mcu): Espressif ESP32-S3-R8 dual-core Xtensa LX7 at 240MHz with 8MB PSRAM, 2.4GHz WiFi, and Bluetooth 5 LE. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)
- **SX1262** (radio): Semtech SX1262 LoRa transceiver inside HPD16A module, covering 433/868/915/920 MHz with +22 dBm output. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsemtech.com%2Fuploads%2Fdocuments%2FDS_SX1261-2_V2.1.pdf&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)
- **W5500** (interface): WIZnet W5500 hardwired TCP/IP SPI Ethernet controller providing 10/100 Mbps wired network connectivity. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.wiznet.io%2Fwp-content%2Fuploads%2Fwiznethome%2FChip%2FW5500%2FDocument%2FW5500_DS_V109E.pdf&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)
- **RS485/RS232/CAN** (interface): RS485, RS232, and CAN bus interfaces for connecting to industrial sensors, PLCs, and vehicle networks. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-Connect-Pro&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)

## Protocols

- **RS-485**
- **RS-232**
- **CAN**
- **SPI**
- **I2C**
- **UART**

## Description

## Overview

The LILYGO T-Connect Pro is an advanced industrial IoT platform consisting of three stacked circuit boards built around the ESP32-S3-R8 microcontroller. It combines long-range LoRa wireless (SX1262) with a comprehensive set of wired industrial interfaces — CAN bus, RS485, RS232, and W5500 Ethernet — plus a relay output for controlling external loads and DC power input for panel or DIN-rail mounting. An optional 222×480 LCD touchscreen provides local monitoring and control. With 16MB flash, 8MB PSRAM, WiFi, and Bluetooth 5 LE, the T-Connect Pro can bridge legacy industrial equipment to modern cloud platforms while simultaneously operating as a LoRa gateway. Available in 433, 868, 915, and 920 MHz LoRa frequency variants.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-connect-pro&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export) — $60.74

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-connect-pro&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-Connect-Pro&ref=openhardware.directory&product=lilygo-t-connect-pro&source=md-export)

## Tags

`esp32-s3`, `lora`, `can-bus`, `rs485`, `rs232`, `ethernet`, `industrial`, `lilygo`, `iot-gateway`

## Images

![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/7c6e651b787a.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/72f3bd72ab99.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/60650514abfd.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/cac49146f8e2.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/56428db6d9fe.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/d69cb09ec8db.jpg)
![LILYGO T-Connect Pro](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-connect-pro/aa15f39401df.png)

---
[View full device page](https://openhardware.directory/devices/lilygo-t-connect-pro)