LILYGO T3 S3 V1.3
ESP32-S3 LoRa development board (hardware revision V1.3) with 0.96-inch SSD1306 OLED, 4MB Flash, 2MB PSRAM, WiFi, BLE 5.0, and support for SX1262/SX1276/SX1280/LR1121 radio modules at 433/868/915MHz and 2.4GHz.
$13.61
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Specifications
Components
Dual-core Xtensa LX7 at 240MHz with 4MB Flash, 2MB PSRAM, WiFi, and BLE 5.0.
0.96-inch monochrome OLED at 128×64 resolution via I2C (SDA IO18, SCL IO17).
Semtech SX1262 sub-GHz LoRa transceiver supporting 433/868/915MHz bands (variant-dependent).
Bus Interfaces
Overview
The LILYGO T3 S3 V1.3 is the hardware revision 1.3 of the T3 S3 ESP32-S3 LoRa development board. It is powered by the ESP32S3FH4R2 chip with 4MB Flash and 2MB PSRAM, providing WiFi and Bluetooth 5.0 connectivity. The board features a 0.96-inch SSD1306 OLED display (128×64, I2C on IO18/IO17) for real-time status readouts. It supports a wide range of LoRa radio modules — SX1262, SX1276, SX1280, and LR1121 — across 433MHz, 868MHz, 915MHz, and 2.4GHz frequency bands, making it highly versatile for regional LoRa deployments. A TF card slot and Reset/Boot buttons are also included. The board is fully compatible with Meshtastic firmware and supports Arduino and PlatformIO development.
Use Cases
5LoRa Mesh Networking
Building off-grid mesh communication networks using LoRa radio for text messaging, location sharing, and sensor data relay without cellular or internet infrastructure.
Off-Grid Communication
Text messaging and data exchange in areas without cellular or internet coverage.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Environmental Monitoring
Monitoring environmental conditions like temperature, humidity, air quality, and weather data using remote sensors.
LoRa Messenger
Build an off-grid text messaging device using LoRa for range and low power.
Where to Buy
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