LILYGO T3 LoRa32 V1.6.1
ESP32-PICO-D4 development board with LoRa SX1276/SX1278 radio, 0.96\" SSD1306 OLED, microSD slot, WiFi, Bluetooth 4.2, and LiPo battery support in a compact 66×36mm form factor.
$15.60
Tap any value to browse matching devices
Specifications
Components
Espressif ESP32-PICO-D4 System-in-Package with Xtensa LX6 dual-core @ 240MHz, 4MB flash, WiFi 802.11 b/g/n, Bluetooth 4.2, and hardware crypto acceleration.
Semtech SX1276 LoRa transceiver with -148dBm sensitivity, +14dBm output power, FSK/GFSK/MSK/GMSK/LoRa/OOK modulation, 137–1020MHz range.
Solomon Systech SSD1306 OLED driver with 128×64 resolution, I2C interface at 0x3C, and 256-step brightness control.
WCH CH9102 USB-to-UART converter supporting up to 4Mbps baud rate with hardware full-duplex UART and built-in crystal oscillator.
Bus Interfaces
GPIO Map
Overview
The LILYGO T3 LoRa32 V1.6.1 is a compact, affordable development board that pairs an ESP32-PICO-D4 System-in-Package with a Semtech SX1276 or SX1278 LoRa transceiver for long-range, low-power wireless communication. Available in 433MHz, 868MHz, 915MHz, and 923MHz variants, it covers all major LoRa frequency bands worldwide. The onboard 0.96-inch SSD1306 OLED display provides a convenient status readout without any external wiring.
The board integrates a microSD card slot for data logging, a 3.7V LiPo battery connector with built-in charging via Micro-USB, and a CH9102 USB-to-serial bridge for programming and debugging. With WiFi 802.11 b/g/n and Bluetooth 4.2 alongside LoRa, it serves as a versatile multi-protocol gateway or sensor node.
A strong community ecosystem backs this board with pre-built firmware options including Meshtastic for off-grid mesh messaging, Paxcounter for WiFi/BLE crowd counting, Disaster Radio for emergency mesh networks, and ESPHome for Home Assistant integration. Its low price point and wide firmware compatibility make it one of the most popular entry-level LoRa development boards available.
Use Cases
6LoRa 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.
Crowd Counting
Estimating the number of people in an area by detecting WiFi and Bluetooth probe requests from mobile devices.
Environmental Monitoring
Monitoring environmental conditions like temperature, humidity, air quality, and weather data using remote sensors.
IoT Gateway
Acting as a local IoT gateway that aggregates data from sensors, runs MQTT broker, Node-RED, or Home Assistant, and bridges to the cloud.
Field Data Logger
Battery-powered device for recording sensor data, GPS coordinates, and environmental measurements in the field.
Resources
Where to Buy
Explore more of the directory — popular use cases, firmware, and specs to browse next.
