The T-Echo is the latest device to be release by LILYGO® supporting a low power consumption microcontroller. This version does not include the BME280 sensor.

Meshtastic firmware file format:
- firmware-t-echo-1.x.x.uf2
- firmware linked below in support & documentation

Specifications

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	200x200
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

Support and Documentation

Dev board return policy

Development boards are specialty items that generally cannot be resold on return, especially if the firmware has been flashed. Defective boards can be replaced or returned for refund within 30 days of purchase. Non-defective boards can be returned in the same time frame if in like-new condition with a 20 percent restocking fee applied. If the board has had altered firmware or became bricked due to a non-standard firmware flash, the board may not be eligible for return.

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

T-Echo

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