LILYGO T-RGB
ESP32-S3 board with a circular 2.1\" or 2.8\" ST7701S RGB display (480×480) and capacitive touch — perfect for smart home controllers, round-display clocks, and interactive dashboards.
$30.04
Tap any value to browse matching devices
Specifications
Components
Espressif ESP32-S3R8 dual-core Xtensa LX7 at 240MHz with 8MB integrated PSRAM, WiFi, BLE 5.0, and USB OTG.
Sitronix ST7701S RGB TFT controller for the 2.1" or 2.8" 480×480 circular display via 3-wire SPI and 18-bit RGB interface.
Goodix GT911 5-point capacitive touch controller on 2.8" full-circle variant with I2C and gesture recognition.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-RGB features a circular or semi-circular TFT display driven by the ST7701S controller via a 3-wire SPI and 18-bit RGB interface, delivering smooth 480×480 pixel graphics on round screen variants. The ESP32-S3R8 dual-core processor at 240MHz with 16MB PSRAM and 8MB flash provides ample resources for complex animated UI, web server hosting, and real-time data visualization.
Capacitive touch is standard across all variants, with different touch controller chips depending on the screen size and shape: FT3267 (2.1" half-circle), CST820 (2.1" full circle), or GT911 (2.8" full circle). The circular form factor lends itself naturally to analog clock faces, compass UIs, smart home controller wheels, and decorative information panels.
A microSD slot provides expandable storage, and battery voltage detection on IO4 supports LiPo-powered portable operation. The board supports Arduino IDE and VS Code (PlatformIO) with comprehensive examples in the T-RGB GitHub repository.
Use Cases
5Smart Home Dashboard
Wall-mounted or tabletop display showing Home Assistant dashboards, sensor readings, and smart home controls.
Weather Display
A dedicated screen that shows weather information including current conditions, temperature, humidity, pressure, and multi-day forecasts.
Digital Signage
Driving displays for advertising, information kiosks, or menu boards with 4K video and dynamic content.
Remote Control
IR or RF-based remote control devices for appliances, TVs, air conditioners, and home electronics.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Resources
Where to Buy
Explore more of the directory — popular use cases, firmware, and specs to browse next.
