LILYGO T-QT Pro
Ultra-compact ESP32-S3 board with a 0.85-inch GC9107 IPS display (128×128), 2MB PSRAM, WiFi, BLE 5.0, and USB-C — one of the smallest ESP32-S3 development boards available.
$9.05
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Specifications
Components
Espressif ESP32-S3FN4R2 dual-core Xtensa LX7 at 240MHz with 4MB flash, 2MB PSRAM, WiFi, BLE 5.0, and USB OTG.
GalaxyCore GC9107 TFT LCD driver for the 0.85-inch 128×128 IPS panel via 4-wire SPI.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-QT Pro is an ultra-compact ESP32-S3 development board with a tiny 0.85-inch GC9107 IPS display at 128×128 pixels. Despite its miniature form factor, the ESP32-S3FN4R2 provides dual-core Xtensa LX7 at 240MHz, 4MB flash, 2MB PSRAM, WiFi 802.11 b/g/n, and BLE 5.0 — making it a capable platform for wearable projects, smart badges, and tiny IoT nodes.
The board exposes GPIO, SPI, I2C, and UART pins on fine-pitch castellated headers and a JST battery connector for LiPo-powered operation. Battery voltage monitoring is available on IO4. With native USB on the ESP32-S3, the USB-C port supports both programming and USB HID/MIDI applications.
Programming support spans Arduino IDE and MicroPython with the T-QT GitHub repository providing display examples. The T-QT Pro is popular for miniature information displays, retro game controllers, small badge projects, and anything requiring ESP32-S3 capability in the smallest possible footprint.
Use Cases
4Wearable
Body-worn computing devices including smartwatches, fitness bands, and health monitors.
Smart Home Dashboard
Wall-mounted or tabletop display showing Home Assistant dashboards, sensor readings, and smart home controls.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Digital Signage
Driving displays for advertising, information kiosks, or menu boards with 4K video and dynamic content.
Resources
Where to Buy
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