LILYGO T-Display S3
ESP32-S3 development board with 1.9-inch ST7789V TFT display (170×320), optional capacitive touch, 16MB flash, 8MB PSRAM, and USB-C. Popular for smart displays and IoT dashboards.
$9.04
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Specifications
Components
Espressif ESP32-S3R8 dual-core Xtensa LX7 @ 240MHz with 8MB integrated PSRAM, WiFi 802.11 b/g/n, BLE 5.0, USB OTG, and AI vector extensions.
Sitronix ST7789V TFT LCD driver for the 1.9-inch 170×320 panel via 8-bit parallel interface.
Hynitron CST816S single-point capacitive touch controller with I2C and gesture recognition on touch variants.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-Display S3 upgrades the popular T-Display with Espressif's ESP32-S3 dual-core Xtensa LX7 processor, significantly boosting performance with AI vector extensions, native USB OTG, and hardware crypto acceleration. The 1.9-inch ST7789V TFT display renders 170×320 pixels over an 8-bit parallel interface, delivering faster refresh rates than SPI-connected panels.
Available in non-touch and touch variants — the touch version adds a CST816S capacitive touch controller for interactive applications. Both versions ship with 16MB flash and 8MB PSRAM, making them well-suited for applications that require large frame buffers, web servers, or significant data processing alongside display output.
The board features a USB-C port, two programmable buttons, battery voltage monitoring on IO4, and a STEMMA QT/Qwiic-compatible JST-SH connector for easy sensor expansion. An optional 700mAh LiPo battery is available for portable builds. Full Arduino IDE and MicroPython support, with the T-Display-S3 GitHub repository providing ready-to-run examples.
Use Cases
5Weather Display
A dedicated screen that shows weather information including current conditions, temperature, humidity, pressure, and multi-day forecasts.
Smart Home Dashboard
Wall-mounted or tabletop display showing Home Assistant dashboards, sensor readings, and smart home controls.
Digital Signage
Driving displays for advertising, information kiosks, or menu boards with 4K video and dynamic content.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Remote Control
IR or RF-based remote control devices for appliances, TVs, air conditioners, and home electronics.
Resources
Where to Buy
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