LILYGO T-Echo
nRF52840 + SX1262 LoRa + L76K GPS all-in-one board with 1.54-inch e-paper display, 850mAh battery, Thread, Zigbee, and BLE 5.0 — runs Meshtastic, SoftRF, and custom NRF firmware out of the box.
$44.61
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Specifications
Certifications
Components
Nordic Semiconductor nRF52840 ARM Cortex-M4F at 64MHz supporting BLE 5.0, Thread, Zigbee, ANT, and 802.15.4 simultaneously.
Semtech SX1262 LoRa transceiver for 433/868/915 MHz with +22 dBm output and -148 dBm sensitivity.
Quectel L76K multi-GNSS module supporting GPS, GLONASS, BeiDou, and QZSS with LNA and SAW filter.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-Echo is a highly integrated portable device combining Nordic Semiconductor nRF52840 multiprotocol SoC with a Semtech SX1262 LoRa radio, a Quectel L76K multi-GNSS receiver, and a 1.54-inch e-paper display in a compact handheld form factor. With an 850mAh battery, the T-Echo can operate for days between charges, making it ideal for off-grid mesh networking, outdoor navigation, and long-range sensor monitoring.
The nRF52840 provides Bluetooth 5.0, Thread 1.3, Zigbee 3.0, ANT, and 802.15.4 protocols simultaneously, making the T-Echo one of the most versatile wireless platforms available. The SX1262 LoRa radio covers 433, 868, and 915 MHz bands with +22 dBm output power and -148 dBm sensitivity for multi-kilometer range. The L76K GNSS module supports GPS, GLONASS, BeiDou, and QZSS constellations.
The T-Echo is the official reference hardware for Meshtastic LoRa mesh networking and also runs SoftRF aircraft tracking firmware. An optional BME280 variant adds barometric pressure, temperature, and humidity sensing. The 1.54-inch e-paper display with 200×200 resolution provides persistent information display without battery drain.
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.
GPS Tracking
Location tracking and navigation using GNSS satellite receivers.
Asset Tracking
Tracking the location and status of physical assets like vehicles, packages, and equipment.
Field Data Logger
Battery-powered device for recording sensor data, GPS coordinates, and environmental measurements in the field.
Resources
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