LILYGO T-Display-S3 ESP32-S3 Development Board User Manual

1. Introducció

The LILYGO T-Display-S3 is a compact and versatile development board featuring an ESP32-S3R8 dual-core LX7 microprocessor and a 1.9-inch ST7789 LCD. This version is shipped with unsolderd pins, offering flexibility for custom applications. It includes 16MB Flash and 8MB PSRAM, along with Wi-Fi and Bluetooth mesh connectivity. This manual provides essential information for setting up, operating, and maintaining your device.

2. Configuració

This section guides you through the initial setup of your LILYGO T-Display-S3 board.

2.1. Contingut del paquet

Verifiqueu que tots els components siguin presents al vostre paquet:

• 1 x T-Display-S3 Board
• 2 x PH2.54 PIN (1*12P)
• 1 x JST 1.25mm 2P wire
• cable USB

Image 1: Components included with the LILYGO T-Display-S3. This image shows the main board, two sets of 12-pin headers, and a JST 1.25mm 2P wire.

2.2. Maquinari acabatview

The T-Display-S3 features a Type-C USB port in the middle for power and data communication. It has a boot button and a custom button on both sides, along with a reset button on the side. A JST-GH 1.25mm 2-pin battery interface is located on the back of the USB port for battery power. GPIO pins are available for extension, and a JST-SH 1.0mm 4-pin interface is reserved for STEMMA QT/Qwiic compatibility. The 1.9-inch ST7789 LCD uses an 8-bit interface.

Imatge 2: Frontal view of the LILYGO T-Display-S3, displaying a clock. This image highlights the integrated 1.9-inch LCD screen and the two side buttons.

Imatge 3: Darrere view of the LILYGO T-Display-S3, revealing the main electronic components and the battery connector.

Image 4: Detailed pinout diagram for the LILYGO T-Display-S3, showing GPIO assignments and connections.

2.3. Initial Power-Up and Firmware Flashing

To begin, connect the USB cable to the Type-C port on the board and to your computer. The board should power on and the display may show a default firmware. If you need to flash new firmware or factory test files, follow the instructions below. The board is available in both welded and non-welded versions.

To enter download mode for flashing:

1. Connect the USB cable to the board and your computer.
2. Manteniu premut el botó BARRETA button (located near the USB port).
3. Mentre aguanta BARRETA, premeu RST Botó (Reiniciar).
4. Allibera el RST botó i, a continuació, deixeu anar BARRETA botó.

Alternatively, you can enter download mode by:

1. Manteniu premut el botó BARRETA button before connecting the USB cable.
2. Connect the USB cable. The board will enter download mode.

3. Instruccions de funcionament

The LILYGO T-Display-S3 is designed for ease of use, especially for development and prototyping. Here are some key operational aspects:

3.1. Connectivitat Wi-Fi

The board supports Wi-Fi (2.4G only) for network connectivity. Once connected, it can perform tasks like automatic time synchronization.

Image 5: The T-Display-S3 automatically synchronizing time via Wi-Fi.

For initial Wi-Fi configuration, you may need to use a mobile application like EspTouch (available on iOS and Android) to provision network credentials to the device. Ensure your phone is connected to a 2.4G Wi-Fi network.

3.2. Custom Buttons

The two custom buttons on the side of the board can be programmed for various functions, allowing for interactive control of your projects without external components.

4. Manteniment

To ensure the longevity and optimal performance of your LILYGO T-Display-S3, follow these maintenance guidelines:

• Mantenir sec: Avoid exposing the board to moisture or liquids, as this can damage electronic components.
• Manejar amb cura: The board contains sensitive electronic parts. Avoid dropping it or subjecting it to strong impacts.
• Netegeu suaument: Si cal netejar-lo, feu servir un drap suau i sec. Eviteu utilitzar productes químics agressius o materials abrasius.
• Emmagatzematge adequat: Store the board in a cool, dry place away from direct sunlight and extreme temperatures.
• Apagueu quan no estigui en ús: Disconnect the USB cable or battery when the board is not in use for extended periods to prevent unnecessary power consumption.

5. Solució De Problemes

If you encounter issues with your LILYGO T-Display-S3, refer to the following common problems and solutions:

• Board not recognized by computer:
  • Assegureu-vos que el cable USB estigui connectat correctament.
  • Prova amb un port o cable USB diferent.
  • Make sure the board is in download mode (refer to Setup section).
  • Install the necessary USB drivers for ESP32-S3 if not already installed.
• La pantalla no mostra res:
  • Verify that the board is powered on (check for power indicator LEDs).
  • Ensure the correct firmware is flashed onto the board. Factory test files can help verify hardware functionality.
  • If you have replaced the TFT_eSPI library, ensure the configuration matches the T-Display-S3.
• Problemes de connexió Wi-Fi:
  • Confirm that your Wi-Fi network is 2.4G, as 5G is not supported.
  • Comprova la contrasenya de la teva Wi-Fi.
  • Ensure the board is within range of your Wi-Fi router.
  • Use the EspTouch app for initial Wi-Fi provisioning if needed.
• Board not responding after flashing:
  • After burning firmware, you need to press the reset button once for the new firmware to run.

6. Especificacions

Image 6: Detailed specifications and features of the T-Display-S3.

7. Garantia i Suport

LILYGO is committed to providing high-quality products and excellent customer service. If you have any questions or suggestions regarding your T-Display-S3, please do not hesitate to contact us. We will respond to your inquiries as soon as possible to ensure your satisfaction.