The LILYGO T-Echo-Lite redefines portable wireless development with its nRF52840 MCU and integrated SX1262 LoRa module, packaged in a minimalist design featuring a 1.22-inch E-Paper display (176×192 resolution). Designed for field deployments, this energy-efficient device combines long-range connectivity with sunlight-readable visuals – ideal for remote sensors, asset trackers, or wearable tech prototypes.
Features
📡 Multi-Band LoRa Connectivity
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Semtech SX1262 Transceiver supporting 433/868/915/923MHz bands
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Dedicated RF control pins: , , ,
🖥️ High-Contrast E-Paper Interface
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1.22" E-Paper Display with SPI control:
, , , , ,
⚡ Nordic nRF52840 MCU
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256KB RAM + 1MB Flash for complex edge applications
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Bluetooth 5.0 coexistence with LoRa (shared antenna support)
🔄 Motion & Expansion Capabilities
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9-Axis IMU (pins not fully labeled; implied by "expandable functions")
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I2C Interface: , , pins for sensor integration
🔋 Low-Power Optimized
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E-Paper's zero-power retention + LoRa's 10km+ range
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Typical current draw <15mA during active RF transmission
Technical Specifications
| Parameter | Details |
|---|---|
| MCU | nRF52840 (Cortex-M4) |
| Wireless | LoRa (SX1262) + BLE 5.0 |
| Display | 1.22" E-Paper (176×192, grayscale) |
| LoRa Bands | 433/868/915/923MHz |
| Development | Arduino, Zephyr, PlatformIO |
| Key Interfaces | SPI (Display/LoRa), I2C, GPIO |
Developer Resources
ℹ️ Product Documentation
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Access pinout diagrams and LoRa-E-Paper demo code on LILYGO GitHub .
💻 Technical Support
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Submit hardware queries via Nordic DevZone or LILYGO forums.
What's Included
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T-Echo-Lite Main Unit ×1
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(Optional) L76K GPS Module (not visible in image but mentioned in specs)
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Quick-Start Guide (E-Paper + LoRa co-processor tutorial)