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TranslateLILYGO T-Echo-lite
Introduction
T-Echo Lite is a Lite version of T-Echo. The LoRa + NRF52840 + e-paper combination has been verified as the lowest power consumption solution available, making it suitable for use as a LoRa node with Meshtastic firmware.
T-Echo Lite comes in three versions:
- T-Echo Lite Core
- T-Echo Lite Base
- T-Echo Lite (Main Unit)
T-Echo Lite (Main Unit)
The main unit is designed based on the T-Echo Lite Base, integrating a 1.2-inch e-paper screen and an enclosure. It also supports an optional GPS expansion module.
The Core module integrates NRF52840, LoRa, solar power support, and battery charging/discharging circuits. It features a compact stamp hole design, making it easy to embed into various user applications.。
T-Echo Lite Base
The Base is an expansion board built around the Core module. It extends the functionality of the Core module to include:
- Battery connector
- Solar panel connector
- QWIIC and USB interfaces
- 1.22-inch e-paper screen interface
- Optional GPS expansion module
Appearance and function introduction
Appearance
Pinmap
Module Information and Specifications
Description
T-Echo Lite is a lightweight version of T-Echo, featuring a smaller size and lower power consumption;
The deep sleep power consumption can reach as low as 2μA–10μA (actual power consumption may vary depending on onboard components;
the minimum power consumption value is based on LILYGO laboratory test results on an engineering board).
T-Echo Lite comes with rich onboard features, including:
- Inertial sensor
- LoRa module
- Solar charging function (5V)
- External GPS support
With its excellent power efficiency, T-Echo Lite offers exceptional battery life, making it ideal for low-power applications.
| MCU | |
|---|---|
| Chip | nRF52840 |
| RAM | 256kB |
| Screen | |
|---|---|
| Name | GDEM0122T61 |
| Size | 1.22 英寸 |
| Resolution | 176x192px |
| Screen type | E-PAPER |
| Driver Chip | SSD1681 |
| Communication Protocol | IIC |
| LORA | |
|---|---|
| Chip Module | S62F |
| Chip | SX1262 |
| Communication Protocol | SPI |
| GPS | |
|---|---|
| Chip | L76K |
| Communication Protocol | UART |
| Inertial Sensor | |
|---|---|
| Chip | ICM20948 |
| Communication Protocol | IIC |
| Flash | |
|---|---|
| Chip | ZD25WQ32CEIGR |
| Communication Protocol | SPI |
Related Links
Github:T-Echo-Lite
Schematic Diagram
Dependency Libraries
- Adafruit_EPD-4.5.5
- Adafruit_BusIO-1.16.1
- Adafruit_SPIFlash-4.3.4
- Adafruit-GFX-Library-1.11.10
- RadioLib-6.6.0
- TinyGPSPlus-1.0.3a
- ICM20948_WE-1.1.11
Software Design
Arduino Set Parameters
| Setting | Value |
|---|---|
| Board | Nordic nRF52840 DK |
Please refer to the instructions for useREADME