LILYGO T-Deck Plus
ESP32-S3 handheld dev board with QWERTY keyboard, trackball, 2.8" IPS LCD, LoRa SX1262, GPS, speaker, dual microphones, and 2000mAh battery in an ABS case.
$70.99
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Specifications
Components
Xtensa LX7 dual-core processor at 240MHz with 16MB flash and 8MB PSRAM, supporting WiFi 802.11 b/g/n and Bluetooth 5.0 LE
Semtech long-range radio supporting 150MHz to 960MHz bands with +22dBm transmit power and LoRa/FSK modulation
Sitronix TFT display controller driving a 320×240 IPS LCD panel via SPI interface
Everest Semiconductor 4-channel audio analog-to-digital converter capturing input from dual MEMS microphones via I2S
Analog Devices 3.2W Class-D mono amplifier with integrated DAC, driving the built-in speaker directly from I2S digital audio
u-blox M10 concurrent multi-constellation receiver supporting GPS, GLONASS, Galileo, and BeiDou with 1.5m accuracy
Dual digital MEMS microphones for voice capture and audio input, connected through the ES7210 audio ADC
Linear lithium battery charging IC managing the built-in 2000mAh LiPo battery via USB-C input
Panasonic omnipolar Hall effect ICs detecting the magnetic trackball rotation on four axes for cursor control
Dedicated RISC-V microcontroller handling QWERTY keyboard scanning and trackball input, communicating with the main ESP32-S3 via I2C
Bus Interfaces
GPIO Map
Overview
The LILYGO T-Deck Plus is a BlackBerry-inspired handheld development board built around the ESP32-S3FN16R8 dual-core microcontroller. It packs a full QWERTY keyboard driven by a dedicated ESP32-C3 controller, a precision trackball using four Hall effect sensors, and a 2.8-inch IPS LCD display into a compact, pocketable form factor with an included ABS protective case.
Wireless capabilities include an SX1262 LoRa transceiver supporting 433/868/915/920 MHz bands at +22 dBm transmit power, along with WiFi 802.11 b/g/n and Bluetooth 5.0 LE from the ESP32-S3. A u-blox MIA-M10Q GNSS module provides multi-constellation positioning with GPS, GLONASS, Galileo, and BeiDou support. The audio subsystem features a MAX98357A I2S amplifier with built-in speaker and dual MSM381A3729H9CP MEMS microphones fed through an ES7210 four-channel audio ADC.
The T-Deck Plus is powered by a built-in 2000 mAh lithium polymer battery with TP4065B charging via USB-C, making it a truly portable device. A microSD card slot provides expandable storage for data logging. The board ships with either LILYGO factory firmware or MeshCore pre-installed, and supports Meshtastic, Arduino, PlatformIO, and MicroPython for custom development. With its combination of LoRa, GPS, keyboard, and battery, it has become one of the most popular platforms for Meshtastic mesh networking and off-grid communication.
Use Cases
5LoRa Mesh Networking
Building off-grid mesh communication networks using LoRa radio for text messaging, location sharing, and sensor data relay without cellular or internet infrastructure.
Off-Grid Communication
Text messaging and data exchange in areas without cellular or internet coverage.
GPS Tracking
Location tracking and navigation using GNSS satellite receivers.
Portable Terminal
Handheld computing device with keyboard and display for field use and on-the-go interaction.
Field Data Logger
Battery-powered device for recording sensor data, GPS coordinates, and environmental measurements in the field.
Resources
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