1. LILYGO® TTGO T-Echo is a version evolved from LILYGO T-BEAM.

2. At the beginning of the design, more consideration was to adapt to Meshtastic and SoftRF, so Bluetooth and low power consumption were considered when designing, and NRF52840 Advanced Bluetooth 5 was selected Thread and Zigbe multiprotocol SoC.

3. The LORA function continues T-BEAM"s LILYGO SX1262 version functional module.

4. T-SX1262 wireless transceiver module, using Semtech SX1262 LORA RF transceiver chip design, working in the 868/915MHz ISM frequency band, integrated high stability TCXO 32MHz crystal oscillator, half-duplex transceiver module, power up to +22dBm, receiving sensitivity -139dBm. Automatic transceiver Switching, internal transmission and reception channel isolation, advanced LORA spread spectrum communication technology, strong anti-interference and privacy, can realize long-distance wireless data transmission and reception.

Github:Basic Example:https://github.com/Xinyuan-LilyGO/LilyGO-T-Echohttps://github.com/lyusupov/SoftRF/wiki/Badge-Edition

SoftRF:https://github.com/lyusupov/SoftRF/wiki/SoftRF-Configuration-Tool

Application scenarios:- DIY creation - LoRa networking - Global Positioning System - IOT terminal controlle - Stem education product

Features of the module:Multisatellite positioning system L76K is a support multisatellite system (Global Positioning System, BeiDou, GLONASS, QZSS), multi-system joint positioning and single system independent positioning, support AGNSS function, built-in low noise amplifier and surface filter, can provide users GNSS module with fast, accurate and high-performance positioning experience.Compared with a single Global Positioning System, the high-precision positioning multisatellite system greatly increases the number of visible and usablesatellite, improves positioning accuracy, and can achieve stable high-precision positioning even in complex urban environments.It supports the AGNSS function, which can greatly Reduce the time for the first positioning, built-in low-noise amplifier, can achieve high sensitivity, high-precision positioning and fast signal capture and tracking, even under weak signal conditions can also ensure a good positioning performance, built-in surface acoustic filter, can greatly The anti-interference ability of the module is enhanced, and the active antenna detection circuit and protection circuit are integrated inside to protect the module and the active antenna from damage.The display uses a 1.54-inch electronic paper display with front light, 200x200 resolution 1.54 front LED E-paper, and it can be used in a dark environment.

Package includes:

1 X T-ECHO Motherboard (SoftRF/Meshtastic/BME280 SoftRF/BME280 Meshtastic optional)1 X Global Positioning System Antenna1 X LORA 915/868/433MHz Antenna (optional)1 X NFC Antenna1 X Touch Cable1 X Jst 2pin1.25mm Battery Cable1 X TYPE-C USB Cable1 X 850mA Capacity Battery1 X ABS Material Enclosure (Black/White/Gray/Brown optional)