LilyGo T-Echo
Ultra-low power e-ink device with nRF52840, GPS and up to 1 month battery life. Only suitable for Meshtastic.
Not MeshCore Compatible
The T-Echo is ONLY suitable for Meshtastic firmware and is NOT supported by MeshCore. If you want to use MeshCore, choose an ESP32-based device like the T-Deck Plus or Heltec V3/V4.
Important: 868 MHz for Europe
Always buy the 868 MHz version for use in Europe. The 915 MHz version (US) is not allowed in Europe.
What is the LilyGo T-Echo?
The LilyGo T-Echo is an ultra-low power LoRa device based on the Nordic nRF52840 chip. Combined with the 1.54" e-ink display, this device is optimized for minimal power consumption - up to one month battery life on a single charge.
The compact device includes GPS (Quectel L76K with support for GPS, GLONASS, Galileo and BeiDou), an 850mAh battery, and various sensors. The e-ink screen is perfectly readable in direct sunlight and only uses power during refresh.
The T-Echo is developed by LilyGo (Shenzhen Xinyuan Electronic Technology Co., Ltd), a Chinese manufacturer that has specialized in IoT development boards since 2018. They have their own factory in Shenzhen.
Technical Specifications
| Chipset | Nordic nRF52840 (ARM Cortex-M4, 64 MHz) + Semtech SX1262 LoRa |
| LoRa Frequency | 868 MHz (EU) - Note: buy the correct version! |
| Display | 1.54" E-Paper, 200x200 pixels, black and white |
| Battery | Built-in 850mAh Li-Po, rechargeable via USB-C |
| GPS | Yes, built-in (Quectel L76K - GPS, GLONASS, Galileo, BeiDou) |
| WiFi / Bluetooth | Bluetooth 5.0, Thread, ZigBee (no WiFi) |
| Dimensions | 66 x 53.5 x 24 mm, 131g |
| Special Features | NFC, BME280 environmental sensor (optional), touch button, 2MB Flash, IP65 not certified |
Why the T-Echo?
The T-Echo is ideal for those seeking maximum battery life. The nRF52840 chip is many times more efficient than ESP32-based devices. Combined with the e-ink display, you can run for weeks to a month on a single charge.
The device has a unique NFC feature: by holding your phone against the back, you can refresh the e-ink screen. The multi-constellation GPS provides fast and accurate positioning, even in cities.
Important limitation: The T-Echo does NOT support MeshCore firmware. It is only suitable for Meshtastic. Due to the lack of WiFi, some advanced features are also not available. For MeshCore, choose an ESP32 device instead.
Buy T-Echo
The T-Echo is available from the official LilyGo Store on AliExpress. Note: Choose the 868 MHz version for Europe. Only suitable for Meshtastic, not for MeshCore.
View on AliExpressMake sure to select the 868 MHz version for Europe
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