body { font-family: Arial, sans-serif; line-height: 1.6; } .features, .package-contents, .applications, .display { margin-top: 20px; } h2 { color: #2a9df4; } LILYGO® TTGO T-Echo The LILYGO® TTGO T-Echo is the advanced evolution of the LILYGO T-BEAM designed to support Meshtastic and SoftRF. This evolution emphasizes Bluetooth capability and low power consumption, featuring the NRF52840 Advanced Bluetooth 5 with Thread and Zigbee multiprotocol support. Key Features LORA Functionality: Incorporates the LILYGO SX1262 LORA module, using the Semtech SX1262 RF transceiver chip. Operates in the 868/915MHz ISM frequency band with a power output of up to +22dBm and a sensitivity of -139dBm. Supports advanced LORA spread spectrum technology for long-distance data transmission. Multisatellite Positioning: Equipped with the L76K system supporting GPS, BeiDou, GLONASS, and QZSS for high-precision positioning even in urban environments. Features AGNSS functionality, a low-noise amplifier, and a surface acoustic filter for enhanced signal tracking and interference handling. 1.54-inch E-paper Display: Features an electronic paper display with front light, 200x200 resolution, usable even in dark environments. Application Scenarios DIY Projects LoRa Networking GPS Positioning IoT Terminal Control STEM Education Package Includes 1 x T-ECHO Motherboard (SoftRF/Meshtastic/BME280 options) 1 x GPS Antenna 1 x LORA 915/868/433MHz Antenna (optional) 1 x NFC Antenna 1 x Touch Cable 1 x JST 2pin 1.25mm Battery Cable 1 x TYPE-C USB Cable 1 x 850mAh Capacity Battery 1 x ABS Material Enclosure (Color options: Black, White, Gray, Brown)