LILYGO T-Echo Lite Kit adds a keyboard shield to the nrRF52840-based ePaper LoRa and GPS development board

LILYGO T-Echo Lite Kit is a Nordic nRF52840-based LoRa + GPS development kit with a built-in keyboard that enables direct off-grid communication without a smartphone. The kit is not entirely new since it’s based on the T-Echo Lite devkit introduced last year, to which the company has now added a keyboard shield with backlit alphanumeric keys, audio support via a 3.5mm audio jack and a built-in speaker, and a vibration motor. LILYGO T-Echo Lite Kit specifications: LILYGO T-Echo Lite Core module SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F microcontroller @ 64 MHz Memory and storage – 1 MB Flash, 256 KB RAM Wireless – Bluetooth 5, Thread, ANT, Bluetooth Mesh, 802.15.4 (Zigbee), 2.4 GHz proprietary LoRa transceiver – Semtech SX1262 with global coverage support: 433 MHz, 868 MHz, 915 MHz, 923 MHz Power management circuitry Display – 1.22-inch SPI e-paper display with 192 x 176 resoltion (GDEM0122T61) [...]

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