The LILYGO TTGO T-Echo is a compact and portable LoRa communication device featuring the NRF52840 MCU and SX1262 LoRa transceiver. It is designed for low-power wireless communication applications, with built-in GPS (L76K), BLE 5.0, and a 1.54-inch e-paper display. Ideal for mesh networks, SoftRF, or Meshtastic projects, it supports long-range data transmission and various open-source firmware options.
Features
Nordic nRF52840 processor with BLE 5.0
Semtech SX1262 LoRa module (433 MHz)
L76K GNSS for GPS/GLONASS/BeiDou positioning
1.54" e-Paper display, 200×200 resolution
Built-in 850 mAh Li-Po battery with USB-C charging
Capacitive touch button and reset button
Supports SoftRF, Meshtastic, and Arduino firmware
Multiple I/O interfaces: SPI, I2C, UART, GPIO
Compact size with lightweight build (~40–50g)
Ideal for wireless communication and tracking applications
