LILYGO T-ETH-Lite ESP32 Development Board User Manual

1. Киришүү

The LILYGO T-ETH-Lite ESP32 is a compact development board designed for projects requiring both Wi-Fi and Ethernet connectivity. It integrates an ESP32-WOVER-E microcontroller, an RTL8201 Ethernet chip, and a TF card slot, making it suitable for various IoT applications, network devices, and embedded systems. This manual provides essential information for setting up, operating, and maintaining your T-ETH-Lite ESP32 board.

2. Продукциянын өзгөчөлүктөрү

• Микроконтроллер: ESP32-WOVER-E
• Эстутум: 16МБ Flash, 8МБ PSRAM
• Зымсыз туташуу: Wi-Fi 802.11 b/g/n, Bluetooth BR/EDR V4.2 + BLE
• Зымдуу туташуу: RTL8201 Ethernet
• Onboard Peripherals: TF карта уячасы
• Баскычтар: Reset, Boot
• Өлчөмдөрү: Болжол менен 2.32 x 1.1 x 0.43 дюйм (5.9 x 2.8 x 1.1 см)
• Кеңейтүү: Supports POE Shield (sold separately)

3. Пакеттин мазмуну

Verify that all items are present in your package. If any components are missing or damaged, please contact your vendor.

• 1 x LILYGO T-ETH-Lite ESP32 Development Board
• 2 x 15-pin Headers
• 1 x 2*4-pin Header

3.1-сүрөт: The image displays the LILYGO T-ETH-Lite ESP32 board along with two 15-pin headers and one 2x4-pin header, which are typically included in the package for connectivity.

4. Техникалык жабдыктар бүттүview

The T-ETH-Lite ESP32 board features a compact design with essential components for network-enabled embedded projects. Below are diagrams illustrating the front, back, and pinout configurations of the board.

4.1 Башкармалыктын макети

4.1-сүрөт: Фронт view of the LILYGO T-ETH-Lite ESP32 development board, showing the ESP32-WOVER-E module, Ethernet chip, and various pin headers.

4.2-сүрөт: Артка view of the LILYGO T-ETH-Lite ESP32 development board, highlighting the TF card slot and additional components.

4.2 Өлчөмдөр

4.3-сүрөт: This image illustrates the physical dimensions of the LILYGO T-ETH-Lite ESP32 board, with length (L) approximately 5.9 cm, width (W) 2.8 cm, and height (H) 1.1 cm.

4.3 Тирөөч схемасы

Understanding the pinout is crucial for connecting external components and programming the board. The diagram below details the GPIOs, power pins, and other interfaces.

4.4-сүрөт: Detailed pinout diagram for the LILYGO T-ETH-Lite ESP32, showing GPIO assignments, power rails (3V3, 5V), ground (GND), TF card connections (SD_MISO, SD_MOSI, SD_SCLK, SD_CS), ADC channels, Touch pins, and serial communication pins (TXD, RXD). It also indicates the RTL8201 Ethernet module connections and suggests using a USB to TTL adapter for programming.

5. Орнотуу нускамалары

Follow these steps to prepare your LILYGO T-ETH-Lite ESP32 for development.

5.1 Аппараттык туташуу

1. Attach Pin Headers: Solder the provided pin headers to the board if not already attached. This allows for easy connection to a breadboard or custom circuitry.
2. Электр камсыздоо: Connect a 5V power supply to the 5V IN pin and GND. Alternatively, if using a POE Shield (sold separately), power can be supplied via Ethernet.
3. USB-to-TTL Adapter: The T-ETH-Lite ESP32 does not have an onboard USB-to-serial converter. You will need an external USB-to-TTL adapter for programming. Connect the adapter's TXD to the board's RXD, RXD to TXD, and GND to GND. Ensure the adapter's voltage level matches the ESP32 (3.3V).
4. Ethernet кабели: Connect a standard Ethernet cable to the RJ45 port for wired network access.
5. TF картасы (кошумча): Insert a formatted TF card into the slot if your application requires data storage.

5.2 Программалык камсыздоо чөйрөсүн орнотуу

1. Install Arduino IDE or ESP-IDF: Download and install the Arduino IDE or Espressif IoT Development Framework (ESP-IDF) based on your development preference.
2. Install ESP32 Board Support: For Arduino IDE, add the ESP32 board manager URL in preferences and install the ESP32 boards package. For ESP-IDF, follow the official installation guide.
3. Драйверлерди орнотуу: Ensure drivers for your USB-to-TTL adapter are installed on your computer.
4. Clone GitHub Repository: Мисалы үчүнample code and libraries specific to the T-ETH-Lite series, clone the official LILYGO GitHub repository: github.com/Xinyuan-LilyGO/LilyGO-T-ETH-Series.

5.3 Uploading Firmware

1. Тактаны тандаңыз: In your IDE, select the appropriate ESP32 board (e.g., "ESP32 Dev Module").
2. Порт тандоо: Choose the serial port corresponding to your USB-to-TTL adapter.
3. Жүктөөчү режимине кириңиз: To upload code, press and hold the Жүктөө button on the T-ETH-Lite board, then press the Калыбына келтирүү button. Release Калыбына келтирүү, андан кийин бошотуу Жүктөө. The board is now in bootloader mode.
4. Жүктөө коду: Compile and upload your sketch or program.

6. Иштөө нускамалары

Once the firmware is uploaded, the T-ETH-Lite ESP32 will execute the programmed logic. For network applications, ensure your code initializes the Ethernet and/or Wi-Fi interfaces correctly.

• Ethernet Operation: Your code should initialize the RTL8201 Ethernet controller and obtain an IP address via DHCP or static assignment.
• Wi-Fi операциясы: Configure your ESP32 code to connect to your desired Wi-Fi network (SSID and password).
• TF Card Access: Use the appropriate libraries (e.g., SD.h in Arduino) to read from and write to the TF card.
• GPIO башкаруусу: Program the GPIO pins as inputs or outputs to interface with sensors, actuators, or other external circuits. Refer to the pinout diagram (Figure 4.4) for available GPIOs.

7. Техникалык тейлөө

Proper care ensures the longevity and reliable operation of your development board.

• Этияттык менен мамиле кылуу: Тактаны түшүрүүдөн же физикалык стресске кабылуудан качыңыз.
• Статикалык разряд: Always handle the board in a static-safe environment to prevent damage to sensitive electronic components.
• Электр камсыздоо: Use a stable 5V power supply. Incorrect voltagтактайга зыян келтириши мүмкүн.
• Экологиялык шарттар: Operate the board within typical indoor temperature and humidity ranges. Avoid extreme temperatures, moisture, and dust.
• Тазалоо: If necessary, gently clean the board with a soft, dry brush or compressed air. Avoid liquids.

8. Кыйынчылыктарды

Эгерде сиз көйгөйлөргө туш болсоңуз, төмөнкү жалпы көйгөйлөрдү чечүү кадамдарын караңыз.

1. Плата күйбөй жатат:
   • Verify the 5V power supply is connected correctly and providing sufficient current.
   • Check for any short circuits on the board.
2. Failed Firmware Upload:
   • Ensure the USB-to-TTL adapter is correctly connected (TX to RX, RX to TX, GND to GND).
   • Confirm the correct serial port is selected in your IDE.
   • Make sure the board is in bootloader mode (hold Boot, press Reset, release Reset, release Boot).
   • Check that the USB-to-TTL adapter drivers are installed.
3. Ethernet Not Connecting:
   • Verify the Ethernet cable is securely connected to both the board and the network device.
   • Check your code for correct Ethernet initialization and configuration (e.g., DHCP client).
   • Ensure your network infrastructure (router, switch) is functioning correctly.
4. Wi-Fi туташуу маселелери:
   • Double-check the Wi-Fi SSID and password in your code.
   • Ensure the Wi-Fi network is within range and operating on a 2.4GHz band.
   • Verify that your ESP32 code correctly initializes the Wi-Fi module.
5. TF Card Not Detected:
   • Ensure the TF card is inserted correctly and fully seated.
   • Verify the TF card is formatted to a compatible file системасы (мисалы, FAT32).
   • Check your code for correct TF card initialization and pin assignments.

9. Техникалык шарттар

10. Колдоо жана ресурстар

For further technical support, code examples, and community discussions, please refer to the official LILYGO GitHub repository and community forums.

• Official GitHub Repository: github.com/Xinyuan-LilyGO/LilyGO-T-ETH-Series
• LILYGO Official Webсайт: www.lilygo.cc