---
id: techo
title: LILYGO® TTGO T-Echo devices
sidebar_label: LILYGO® T-Echo
sidebar_position: 2
---

The T-Echo is the latest device to be release by LILYGO® supporting a low power consumption micro-controller.

### Features

- nRF52840 - Bluetooth BLE 5.0, NFC and very low power consumption
- SX1262 - LoRa transceiver
- 1.54" eInk display
- L76K - GNSS receiver - Supporting GPS, BeiDou, GLONASS & QZSS
- Reset, Program and capacitive touch buttons
- U.FL antenna connector
- Optional BME280 - Humidity and Pressure Sensor
- Comes with a case and battery


- Firmware file: `firmware-t-echo-2.x.x.uf2`
- [Purchase link](https://www.aliexpress.com/item/1005002842456390.html)
- TTGO's [GitHub page](https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo) for the T-Echo

<img
  alt="LILYGO T-Echo"
  src="/img/hardware/t-echo.png"
  style={{ zoom: '15%' }}
/>

### T-Echo button functions

- Capacitive top button
  - A short press refreshes the current screen
- Button 1
  - A single press resets the device
  - A double press puts the device into bootloader mode ready to receive a new firmware
- Button 2
  - A single press changes the page displayed on the device
  - A double press turns the screen backlight on/off
  - A long press turns the device off


[<img alt="LILYGO T-Echo" src="/img/hardware/t-echo-lilygo.jpg" style={{zoom:'25%'}} />](/img/hardware/t-echo-lilygo.jpg)