LilyGo T-Echo TTGO Meshtastic 868MHz

This is a LoRaWAN APRS tracker from LilyGo. The T-Echo is a continuation of the T-Beam series. The T-Echo features an L76K multi-system GNSS module that measures the position within 2m accuracy and then sends it via an SX1262 LoRa transceiver. The integrated nRF52840 MCU offers Bluetooth 5.0, Bluetooth Mesh, Zigbee, and ANT connectivity. Moreover, it can communicate through all standard interfaces such as UART, SPI, I2C, I2S, QSPI, TWI and PDM. A 1.54-inch E-paper display shows you all the necessary information with very low power consumption. Together with the integrated 850mAh Li-Po battery, this allows for much longer runtimes compared to an OLED display. The module has an NFC sensor on the bottom, which allows you to comfortably refresh the E-paper display with your mobile phone, for example. The module is programmed via a USB-C port.

Recommended Accessories:

LoRa 868 MHz Antenna

Features:

868MHz LoRa APRS Tracker
Bluetooth 5.0, Bluetooth Mesh, Zigbee, ANT, 802.15.4 and Thread Connectivity
L76K GPS Module, accurate position measurement up to 2m
1.54 inch Low Power E-Paper Display
Reset, Boot and 1x programmable Touch Button
NFC Sensor for Display Refresh
Stable ABS Housing

Documentation:

Pinout LilyGo T-Echo:

Technical Details:

Manufacturer: LilyGo
Manufacturer SKU: H506
MCU: nRF52840
Flash: 2MB
RAM: 256KB
Bus Interfaces: UART, SPI, TWI, PDM, I2S, QSPI
Wireless Connectivity: Bluetooth 5.0, Bluetooth Mesh, Zigbee, ANT, 802.15.4 and Thread
LoRa Transceiver: SX1262
Frequency: EU868MHz
Display Size: 1.54 Inches
Grayscale: 2
Full Refresh: 2s
Resolution: 200x200
RTC Chip: PCF8563
GPS Module: L76K
Position Tolerance: 2m
USB Interface: USB-C
Touch Button: TTP223
Expansion: 10pin BTB expansion Socket
Dimensions: 66 x 53.5 x 24mm
Weight: 131g