LilyGo T-Deck Pro 868MHz LoRa and 4G Development Board

The T‑Deck Pro combines a compact QWERTY keyboard, a 3.1-inch e-paper touch display, and extensive wireless connectivity in a mobile platform for IoT projects. It is based on the ESP32‑S3 microcontroller with two LX7 cores, 16 MB flash, and 8 MB PSRAM, offering both 2.4 GHz Wi‑Fi 4 and Bluetooth 5 LE. For long ranges, an SX1262 LoRa module is integrated, supporting the EU band of 868 MHz and can be operated via the built‑in antenna or an external whip antenna. The 4G model uses the A7682E LTE modem chip, controlling not only data but also audio functions via the integrated speaker and microphone. The 3.1-inch e-paper display with 320 × 240 pixels can be operated via touch and provides fast refresh modes for static and dynamic content. A u‑blox GPS module ensures precise location and tracking along with the 4G connection. Other features include a 3.5 mm audio jack, an SD card slot, a Qwiic connector for sensor extensions, as well as reset and boot buttons. A Bosch BHI260AP sensor and a light sensor provide movement and environmental data, while a vibration motor provides haptic feedback. Power is supplied via a USB‑C port with integrated charging electronics for the permanently installed 1400 mAh battery. With these features, the board is suitable for off-grid communication, remote sensing, and mobile development projects.

Features:

LoRa module operates in the 868 MHz band with integrated SX1262 transceiver and supports external antennas for ranges up to several kilometers.
4G connectivity is enabled by the A7682E modem chip, which also handles audio playback via speaker and microphone.
3.1-inch e-paper touchscreen with 320 × 240 pixels offers fast refresh modes and is power-efficient.
ESP32‑S3 processor with 16 MB flash and 8 MB PSRAM provides computing power for applications and supports Wi‑Fi 4 and Bluetooth 5 LE.
QWERTY keyboard, reset/boot buttons, and vibration motor facilitate operation and input.
Sensors include the Bosch BHI260AP IMU and an ambient light sensor for motion and light measurement.
MicroSD slot, Qwiic port, and GPS module expand the board's application possibilities.
Integrated 1400 mAh battery is charged via USB‑C and enables mobile operation without an external power source.

Application Examples:

For off-grid messaging, the board can serve as a portable LoRa messenger with 4G fallback.
In agriculture, sensor values can be transmitted via LoRa or 4G and displayed locally on the e-paper display.
As a mobile GPS tracker module, it allows monitoring of vehicles or goods with optional SIM connection.
For prototypes, the QWERTY keyboard provides a convenient interface for local control of programs.
In education, it serves as a development platform for teaching wireless communication and embedded systems.

Documentation:

T-Deck Pro Github

Technical Specifications:

Technical Specifications:
Manufacturer: LILYGO
Manufacturer SKU: H693
Microcontroller: ESP32‑S3FN16R8 Dual‑Core LX7, 240 MHz
Flash Memory: 16 MB SPI‑Flash
PSRAM: 8 MB
Display: 3.1 inch e-paper touchscreen, 320 × 240 pixels
LoRa Frequency: 868/915 MHz, Transceiver SX1262
4G Module: Simcom A7682E, LTE Cat 1
GPS Module: U‑blox MIA‑M10Q
Sensors: BHI260AP IMU, LTR‑553ALS Light Sensor
Interfaces: MicroSD, USB‑C, Qwiic, 3.5 mm Audio, Reset/Boot buttons, Vibration Motor
Inputs: QWERTY keyboard (TCA8418)
Power Supply: 5 V USB‑C, 1400 mAh Li‑Ion Battery.
Dimensions: 120.0 × 66.0 × 13.5mm
Weight: 160.0g