The LILYGO T-ECHO is an advanced version of the LILYGO T-BEAM, designed with improved compatibility for Meshtastic. In its development, much consideration was given to optimizing Bluetooth functionality and low power consumption. The NRF52840 Advanced Bluetooth 5 SoC was selected for its robust performance, supporting both Thread and Zigbee multi-protocol communication, making it ideal for a variety of wireless applications.
The LILYGO T-ECHO continues the LORA functionality of the T-BEAM, incorporating the LILYGO SX1262 wireless transceiver module. The SX1262 uses the Semtech SX1262 LORA RF transceiver chip, operating in the 868/915 MHz ISM frequency band. It features a high-stability TCXO 32 MHz crystal oscillator, providing superior performance in both transmission and reception. With a maximum output power of +22dBm and a receiving sensitivity of -139dBm, the LILYGO T-ECHO ensures long-range communication, even in challenging environments. Its automatic transceiver switching and advanced LORA spread spectrum communication technology enhance anti-interference, ensuring reliable and secure long-distance wireless data transmission.
In addition, the LILYGO T-ECHO BME280 integrates the BME280 sensor, providing precise environmental measurements, including temperature, humidity, and pressure. This makes the device perfect for IoT applications that require real-time environmental data alongside robust wireless communication capabilities. The BME280 sensor enhances the overall functionality of the LILYGO T-ECHO, offering a complete solution for environmental monitoring and remote sensing.
Specification of the LILYGO T-ECHO BME280
| MCU | NRF52840 |
| FLASH | 2MB |
| RAM | 2MB |
| Bus Interfaces | UART, SPI, TWI, PDM, 12S, QSPI |
| Wireless Connectivity |
Bluetooth 5, Thread, Bluetooth Mesh, ANT, 802.15.4, Zigbee With/Without BME280 temperature pressure sensor |
| SX1262 LoRa Transceiver | Long Range, Low Power Global frequency coverage 433, 868, 915Mhz |
| Enclosure material | ABS |
| Version | Normal version / BME280 version |
| Battery Capacity | 850mAh |
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1.54-inch SPI E-Paper Display
| Grey level | 2 |
| Resolution | 200x200 |
| Full refresh time | 2S |
L76K Multi-System Positioning GNSS module
| Support System | GPS, GLONASS, BeiDou, QZSS |
| Support Function |
LNA, SAW Filter, AGNSS, 1PPS |
Technology Support [Github]
If you need technical support please check the link to find more details.
Basic Example:
https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo
Meshtastic:
Application scenarios
- DIY creation
- LoRa networking
- GPS positioning
- IOT terminal control
- Stem education product
Features of the LILYGO T-ECHO BME280
The LILYGO T-ECHO BME280 integrates the advanced L76K multi-satellite positioning system, which supports a variety of global navigation satellite systems (GNSS) such as GPS, BeiDou, GLONASS, and QZSS. This allows for multi-system joint positioning and single system independent positioning, ensuring accurate location data in a variety of environments. Additionally, the LILYGO T-ECHO BME280 features AGNSS (Assisted GNSS), which reduces the time needed for the first positioning fix, providing a fast and reliable user experience.
Compared to traditional single-system GPS, the multi-satellite system in the LILYGO T-ECHO BME280 significantly increases the number of visible satellites, boosting positioning accuracy and stability even in complex urban environments where GPS signals are often weak. The integration of a built-in low-noise amplifier (LNA) and surface filter ensures high sensitivity, enabling quick signal capture and precise tracking, even under challenging conditions.
The LILYGO T-ECHO BME280 also enhances anti-interference capabilities with its surface acoustic filter, improving performance in environments with electromagnetic noise. Additionally, the module is equipped with an active antenna detection circuit and a protection circuit, safeguarding both the module and antenna from potential damage.
For improved user interaction, the LILYGO T-ECHO BME280 features a 1.54-inch electronic paper display (E-paper) with a 200x200 resolution LED front light. This ensures clear visibility in low-light or dark environments, making it ideal for both indoor and outdoor use.
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