LILYGO TTGO T-Echo module

Buy LILYGO TTGO T-Echo Module for Rapid Development of Autonomous IoT Devices with LoRa and GPS

The LILYGO TTGO T-Echo module is a compact platform based on NRF52840 with an integrated SX1262 LoRa transceiver and L76K multi-system GPS module. The device is ideal for creating long-range sensors, trackers and mesh networks. The model supports Meshtastic firmware and works with popular development environments such as Arduino IDE and PlatformIO.

Built-in 1.54" E-Paper display with low power consumption provides information without the need to constantly refresh the screen. This is a ready-made solution for professionals and enthusiasts involved in the Internet of Things, navigation and remote monitoring.

The LILYGO brand (Shenzhen Xin Yuan) is a Chinese manufacturer specializing in the development of open hardware solutions for IoT, STEM education and electronic projects. The company is known for its ESP32 and NRF52 based boards, as well as modules supporting LoRa, GPS and displays. LILYGO products are aimed at developers, students and engineers, providing ready-to-use modules with open documentation and community support. The T-Echo module is an evolution of the popular T-Beam board and is specially adapted to work with the Meshtastic protocol.

5 main advantages

• Long-distance LoRa communication with SX1262 transceiver (power up to +22 dBm, sensitivity -139 dBm) for transmitting data over kilometers.
• L76K Multi-System GNSS Module Supports GPS, GLONASS, BeiDou and QZSS for precise positioning up to 2 meters.
• Energy efficient microcontroller NRF52840 with Bluetooth 5, Thread, Zigbee and 2 MB Flash/RAM for complex applications.
• 1.54 inch E-Paper display with a resolution of 200x200 pixels to display data without constantly refreshing the screen.
• 850 mAh battery and a compact ABS plastic housing for long battery life in the field.

How the module works

The module is based on a 32-bit NRF52840 microcontroller with support for Bluetooth 5.0, Bluetooth Mesh, Thread and Zigbee. The SX1262 LoRa transceiver with an integrated highly stable TCXO oscillator provides data transmission at frequencies of 433, 868 or 915 MHz with power up to +22 dBm and reception sensitivity up to -139 dBm. The L76K multi-system GNSS module supports joint positioning by GPS, GLONASS, BeiDou and QZSS. This increases the accuracy and speed of determining coordinates even in difficult urban conditions.

1.54-inch E-Paper display with a resolution of 200x200 pixels displays data with minimal power consumption. Programming is done via USB-C port using Arduino IDE or PlatformIO. The module comes with pre-installed Meshtastic firmware for quick deployment of Mesh networks. Built-in 850 mAh battery ensures long battery life.

• MCU: nRF52840
• Flash memory: 2 MB
• RAM: 2 MB
• Bus interfaces: UART, SPI, TWI, PDM, I2S, QSPI
• Wireless: Bluetooth 5, Thread, Bluetooth Mesh, ANT, 802.15.4, Zigbee
• Sensor: versions with and without temperature/pressure sensor BME280
• LoRa transceiver: SX1262, long range, low power consumption
• Frequency bands: global coverage 433 / 868 / 915 MHz
• Body material: ABS
• Product versions: regular version / version with BME280
• Battery capacity: 850 mAh