LilyGo TTGO T-Display ESP32-S3 Pro LR1121 LoRa 868MHz with 2.33 inch Display

The LILYGO T-Display S3 Pro LR1121 is a fully-equipped development board for demanding IoT and Meshtastic projects. The board is based on the ESP32-S3R8 dual-core processor with 16 MB Flash and 8 MB PSRAM, and combines a 2.33-inch IPS touch display with dual-band LoRa radio technology via the Semtech LR1121 transceiver. The LR1121 supports both sub-GHz frequencies (868/915 MHz) and the 2.4 GHz band for maximum flexibility in radio communication. The built-in 2000 mAh Li-Ion battery ensures long mobile operation, while the robust housing made of ABS+PC material offers a 1/4-inch tripod socket for outdoor mounting.

Features:

• Dual-band LoRa via LR1121 supports sub-GHz and 2.4 GHz for flexible radio communication
• 2.33-inch IPS touchscreen with 222 × 480 pixels enables comfortable operation
• Integrated 2000 mAh Li-Ion battery offers long mobile operation without external power supply
• Audio hardware with speaker, microphone, and vibration motor for walkie-talkie features
• Robust housing with tripod socket suitable for outdoor and field applications
• ESP32-S3 with WiFi, Bluetooth 5, and Bluetooth Mesh offers comprehensive connectivity

Application Examples:

• Meshtastic handheld for off-grid text communication via LoRa mesh networks
• Walkie-talkie with LoRa-based voice transmission via the integrated audio hardware
• Outdoor data logger with GPS connection and long-term battery operation
• IoT gateway for smart agriculture and environmental sensors in remote areas
• Development platform for dual-band LoRa applications and protocol development

Documentation:

• GitHub – T-Display S3 Pro LR1121 Repository

Specifications:

• Manufacturer: LILYGO
• Manufacturer SKU: K252-01
• Microcontroller: ESP32-S3R8 Dual-Core LX7
• Flash Memory: 16 MB
• PSRAM: 8 MB
• Wireless Connectivity: WiFi 802.11 b/g/n, Bluetooth 5 (LE), Bluetooth Mesh
• LoRa Chip: Semtech LR1121
• LoRa Frequencies: Sub-GHz (868/915 MHz) and 2.4 GHz
• Display: 2.33-inch IPS TFT touchscreen
• Display Resolution: 222 × 480 pixels
• Display Driver: ST7796
• Battery: 2000 mAh Li-Ion (integrated)
• Audio: Speaker (MAX98357A), PDM microphone
• Additional Features: Vibration motor, RTC
• Housing Material: ABS+PC
• Tripod Socket: 1/4 inch
• USB Connector: USB-C
• Development Environment: Arduino IDE, PlatformIO, ESP-IDF
• Package Dimensions: 102 × 69 × 62 mm
• Gross Weight: 146 g

Package Contents:

• 1× LilyGo TTGO T-Display ESP32-S3 Pro LR1121 LoRa with 2.33-inch display