T-Display S3 Pro LR1121 get it now

Overview

T-Display S3 Pro LR1121 is a highly integrated development board based on ESP32-S3R8 (16 MB Flash, 8 MB PSRAM). Equipped with a 1.91-inch RM67162 IPS AMOLED display (SPI/QSPI), LR1121 multi-band LoRa module, AXPM65611 + BQ25896 power management, PCF85063ATL RTC, TF card, and STEMMA QT/QWIIC expansion. Suitable for smart wearables, IoT terminals, and scenarios requiring display interaction with long-range wireless communication, in a compact 60 × 32 × 12 mm form factor.

Quick Start

Example Support

Example	PlatformIO/Arduino	ESP-IDF	Description
LilyGo-AMOLED-Series	✓		Factory and display examples

PlatformIO

1. Install Visual Studio Code and Python
2. Search for and install the PlatformIO IDE extension in VS Code
3. Open the LilyGo-AMOLED-Series project folder
4. Open platformio.ini and select your example
5. Click ✓ to compile, connect via USB-C, click → to upload

Arduino

1. Install Arduino IDE
2. Install Arduino ESP32
3. In Tools → Board, configure:

Arduino IDE 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	240 MHz (WiFi)
Flash Mode	QIO 80 MHz
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

4. Click Upload

Development Platforms

1. Arduino IDE
2. PlatformIO
3. MicroPython

Video

Key Features

• ESP32-S3R8 dual-core LX7 @ 240 MHz, Wi-Fi + Bluetooth 5.0
• 1.91-inch RM67162 IPS AMOLED, SPI/QSPI
• LR1121 multi-band LoRa (sub-GHz + 2.4 GHz)
• AXPM65611 + BQ25896 power management, PCF85063ATL RTC
• TF card, STEMMA QT/QWIIC, 2×13 dual-row expansion header
• 60 × 32 × 12 mm, 4 × 2 mm positioning holes

Product Parameters

Feature	Specification
MCU	ESP32-S3R8 @ Dual-core LX7, 240 MHz
Flash	16 MB
PSRAM	8 MB (Octal SPI)
Wi-Fi	2.4 GHz 802.11 b/g/n
Bluetooth	Bluetooth 5.0 LE
LoRa	LR1121 (multi-band)
Display	1.91-inch RM67162 IPS AMOLED
Touch	Capacitive
Power Management	AXPM65611 + BQ25896
RTC	PCF85063ATL
Storage	TF card slot
USB	1 × Type-C (USB + OTG)
Expansion	STEMMA QT/QWIIC + 2×13 dual-row header
Mounting Holes	4 × 2 mm
Dimensions	60 × 32 × 12 mm

Pin Diagram

Dimension Diagram

Schematic

• T-Display S3 AMOLED Plus Schematic

Datasheet

• ESP32-S3 Datasheet

Software Development

• LilyGo-AMOLED-Series GitHub Repository

Dependent Libraries

• lvgl-8.3.9
• AceButton
• TFT_eSPI
• Arduino_GFX
• XPowersLib
• SensorLib
• TinyGPSPlus

FAQ

• Q. Why does my board keep failing to upload programs? A. Hold down the BOOT button, then press the RST button once, then click Upload to enter download mode.

• Q. Which frequency bands does the LR1121 LoRa module support? A. The LR1121 supports multiple sub-GHz bands (433/868/915 MHz) and 2.4 GHz. Select the appropriate band according to regional regulations.

• Q. How to connect external sensors? A. Use the onboard STEMMA QT/QWIIC interfaces for compatible sensor modules, or the 2×13 dual-row expansion header for other peripherals.

Version History

Version	Release Date	Update Description
T-Display-S3-Pro-LR1121 V1.0	2024-01-01	Initial version