LILYGO T-Connect

T-Connect

Introduction

T-Connect is a multifunctional development board based on the ESP32-S3 chip, equipped with 8MB PSRAM and 16MB Flash. It supports dual-mode Wi-Fi/Bluetooth communication and industrial protocols such as RS485 and CAN. The board features a built-in APA102 LED driver, enabling direct control of RGB light strips.

With multiple UART interfaces and multiplexed pins (such as the SGD/SGC series), T-Connect is well-suited for IoT devices, industrial automation, and smart lighting applications. It combines high integration with flexible expansion, making it ideal for reliable communication and versatile control in complex environments.

Appearance and function introduction

Appearance

summary

Pinmap

summary

Module Information and Specifications

Description

T-Connect is a development board capable of outputting data from four different module groups, supporting both CAN and RS485 protocols with flexible switching between them. It can support up to three independent RS485 channels and one CAN bus, each capable of transmitting different sets of data simultaneously.

summary
Component Description
MCU ESP32-S3-R8
FLASH 16MB
PSRAM 8MB (Octal SPI)
RS485 UART communication
CAN TWAI communication
Led APA102
Relay Output 10A
USB 1 × USB Port and OTG(TYPE-C interface)

Output: Supports up to three groups of RS485 and one group of CAN bus output
| Extended Interface | 1 × QWIIC interface |
| Keys | 1 x RESET key + 1 x BOOT key |
| Power supply | 5V/500mA USB interface power supply
7V~12V DC power input |
| Hole Position | 2mm positioning hole × 4 |
| Dimensions | 94x83x13mm |

Github:T-Connect

Schematic Diagram

T-Connect

Dependency Libraries

Software Design

Arduino Set Parameters

Setting Value
Board ESP32S3 Dev Module
Upload Speed 921600
USB Mode Hardware CDC and JTAG
USB CDC On Boot Enabled
USB Firmware MSC On Boot Disabled
USB DFU On Boot Disabled
CPU Frequency 240MHz (WiFi)
Flash Mode QIO 80MHz
Flash Size 16MB (128Mb)
Core Debug Level None
Partition Scheme 16M Flash (3MB APP/9.9MB FATFS)
PSRAM OPI PSRAM
Arduino Runs On Core 1
Events Run On Core 1

Development Platform

  1. VS Code
  2. Arduino IDE
  3. Platform IO

Product Technical Support