LILYGO T-Display Bar: ESP32-S3 Board with Touchscreen & AI Sensor

LILYGO T-Display Bar  front and back

LILYGO T-Display Bar is yet another ESP32-S3 board with an integrated display, offering a 2.25-inch IPS Full Color RGB LCD display with 76 x 284-pixel resolution having capacitive touch features.  

The Wi-Fi and Bluetooth wireless display board is powered by an ESP32-S3R8 WiSoC with 8MB PSRAM, and comes with a 16MB SPI flash, two Qwiic connectors and a 30-pin header for expansion, a USB Type-C port for power supply, charging, and programming, a self-learning AI smart sensor and IMU for personized fitness tracking, and a 3-pin connector for an optional Single-Cell Li-Ion Battery making it ideal for embedded systems, DIY projects, and industrial control applications. 

Previously, we covered several T-Display boards from LILYGO, including the T-Display K230, T-Display S3 AMOLED Plus, T-Display S3 AMOLED, T-Display S3 Pro, and more. Feel free to check those out if you’re interested.

LILYGO T-Display Bar

LILYGO T-Display Bar Specifications:

• SoC: Espressif Systems ESP32-S3R8
  • CPU: Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration
  • System Memory: 512KB RAM, 8MB PSRAM
  • Storage: 16MB SPI Flash (W25Q128), MicroSD card socket
• Wireless Connectivity:
  • 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support
  • Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, up to 2Mbps data rate.
  • Bluetooth Mesh connectivity
• Display: 2.25-inch IPS Full Color RGB LCD capacitive touchscreen display (ST7789) with 76×284-pixel resolution
• USB: 1x USB Type-C port for power supply, charging, and programming
• Sensor: BHI260AP AI Smart Sensor (6-axis IMU Sensor)
• Expansion:
  • 2x Qwiic I2C connectors
  • 30-pin header with 1.27mm pitch equipped with GPIOs, I2C, UART, 3.3V, GND
• Misc: BOOT, Sleep, and Reset buttons, Buzzer
• Power Supply:
  • 5V 500mA via USB Type-C port
  • 1.25mm pitch 3-pin JST connector for Single-Cell Li-Ion Battery (BQ27220), Battery level indicator
  • BQ25896 I2C single-cell 3A buck battery charger with power path and PSEL
  • Power Consumption
    • Wi-Fi on: 90 to 230 mA
    • Ultra-Low Power Consumption in NORMAL (50 µA) and SLEEP (9 µA) Modes
• Dimensions: 69 x 23 x 15 mm

T-Display Bar Pin Mapping

T-Display Bar supports Arduino, PlatformIO–IDE, and ESP-IDF. LILYGO provides PlatformIO/Arduino firmware and samples (Factory test example, TFT sample, touchscreen sample, and LVGL demo), PDF schematics, datasheets, and basic documentation on GitHub. 

LILYGO is selling the T-Display Bar ESP32-S3 with a 2.25-inch RGB IPS LCD for $27.36 on their official product page. At the moment, it’s not available on other platforms, but LILYGO plans to list it on Amazon and AliExpress in the future.

All images are courtesy of LILYGO.