The LILYGO T-Display Bar is an ESP32-S3 development board featuring a built-in 2.25-inch IPS full-color RGB LCD with a 76 x 284 resolution and capacitive touch support. It is powered by the ESP32-S3R8 WiSoC, which integrates 8MB of PSRAM, and is paired with 16MB of SPI flash. The board provides connectivity through Wi-Fi and Bluetooth, and expansion options include two Qwiic connectors and a 30-pin header.
For power and programming, the T-Display Bar is equipped with a USB Type-C port, while a 3-pin connector allows the use of an optional single-cell Li-Ion battery. Additional features include a self-learning AI smart sensor and an IMU for personalized fitness tracking. These capabilities make the board well-suited for embedded systems, DIY projects, and industrial control applications.
We recently covered another LILYGO product, the T-Circle and T-Circle-S3, two compact ESP32-S3 boards with a touch display, microphone, and speaker. If you’re interested, feel free to check out this circular TFT display as well.
LILYGO T-Display Bar specifications:
The LILYGO T-Display Bar is powered by the Espressif ESP32-S3R8 SoC, integrating a dual-core Tensilica LX7 microcontroller running up to 240 MHz with vector instructions for AI acceleration. It comes with 512KB RAM, 8MB PSRAM, and 16MB SPI Flash (W25Q128), along with a MicroSD card socket for external storage. Wireless connectivity includes 2.4 GHz Wi-Fi 4 with 40 MHz bandwidth, Bluetooth 5.0 LE with long-range and up to 2 Mbps data rate, and Bluetooth Mesh support.
The board features a 2.25-inch IPS capacitive touchscreen display (ST7789) with a 76 x 284 resolution, and integrates a BHI260AP AI smart sensor with a 6-axis IMU for motion and fitness applications. Expansion options include two Qwiic I2C connectors and a 30-pin 1.27mm header exposing GPIOs, I2C, UART, 3.3V, and GND. Additional components include BOOT, Sleep, and Reset buttons, plus a buzzer for user interaction.
For power, the board provides a USB Type-C port supporting 5V/500mA input for supply, charging, and programming, as well as a 1.25mm pitch 3-pin JST connector for single-cell Li-Ion batteries. It uses a BQ25896 I2C 3A buck battery charger with power path management and battery level indication. Power consumption ranges from 90–230 mA with Wi-Fi enabled to as low as 50 µA in Normal mode and 9 µA in Sleep mode. The board measures 69 x 23 x 15 mm, making it compact for embedded, IoT, and portable projects.
LILYGO-T-Display-Bar pinout
The T-Display Bar supports Arduino, PlatformIO-IDE, and ESP-IDF, with firmware and sample projects available from LILYGO, including factory test, TFT, touchscreen, and LVGL demos. The company also provides PDF schematics, datasheets, and basic documentation on GitHub to help developers get started quickly.
LILYGO is offering the T-Display Bar ESP32-S3 with a 2.25-inch RGB IPS LCD for $27.36 through its official product page. The board is currently exclusive to LILYGO’s store, but the company plans to make it available on Amazon and AliExpress at a later date.
All images are courtesy of LILYGO.
Niladri Chowdhury