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LILYGO® T-Echo Meshtastic LoRa 915MHz 1.54 E-Paper GPS RTC NFC BME280 WIFI
Live inventory! Ships from Virginia, USA.
Select Color and Service, If no flashed variant of radio is available and you want us to flash your device please contact us or add the flashing service before you check out.
T-Echo units have a 30 DAY Limited Warranty* but we provide no aftermarket product support due to the unfinished / technical nature of the units.
Flash Units are tested before we send them out.
Specification
| 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 |
| Battry Capacity | 850mAh |
1.54-inch SPI E-Paper Display
| Grey level | 2 |
| Resolution | 200×200 |
| Full refresh time | 2S |
L76K Multi-System Positioning GNSS module
| Support System | GPS, GLONASS, BeiDou, QZSS |
| Support Function | LNA, SAW Filter, AGNSS, 1PPS Improved receiving and anti-interference attributes |
LILYGO® TTGO Meshtastic T-Echo Introduce：
LILYGO®TTGO T-Echo is a version evolved from LILYGO T-BEAM. At the beginning of the design, more consideration was to adapting to Meshtastic.
so Bluetooth and low-power consumption were considered when designing, and NRF52840 Advanced Bluetooth 5 was selected thread and Zigbee multiprotocol SoC.
The LORA function continues T-BEAM's LILYGO SX1262 version functional module.
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
Battery capacity: 850mAh
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
Application scenarios:
– DIY creation – LoRa networking – GPS positioning – IOT terminal control – Stem education product
Features of the module:
Multi-satellite positioning system L76K is a support multi-satellite system (GPS, 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 GPS system, the high-precision positioning multi-satellite system greatly increases the number of visible and usable satellites, 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, 200×200 resolution 1.54 front LED E-paper, and it can be used in a dark environment. |
1. Size
2. Pin Diagram
3. Appearance Details
 |
T-Echo 433/868/915MHz BME280 Options
| T-Echo | 1 X T-ECHO Motherboard [BME280]
1 X GPS Antenna 1 X LORA 915/868/433MHz Antenna 1 X NFC Antenna 1 X Touch Cable 1 X Jst 2pin1.25mm Battery Cable 1 X 850mA Capacity Battery 1 X ABS Material Enclosure 1 X Type C USB Cable
(The color depends on the version you choose) |
 |
lilygo-t-echo-meshtastic-lora-915mh-gps-bme280
| Weight | 5.0 oz |
|---|---|
| Dimensions | 8.0 × 7.0 × 4.0 in |
| Color | FDE, Black |
| Firmware | *Unflashed*, Flashed |
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