LILYGO T-Internet ESP32 Module User Manual

1. Sản phẩm hếtview

The LILYGO T-Internet ESP32 module is a versatile development board designed for Internet of Things (IoT) applications, featuring an ESP32 microcontroller, Ethernet connectivity, and slots for SIM and TF cards. It integrates various bus interfaces and wireless communication capabilities for flexible project development.

Các tính năng chính:

• vi điều khiển: ESP32-WROVER-E
• USB to TTL Chip: CH9102 for reliable serial communication
• Bus Interfaces: UART, SPI, I2C, CAN, I2S, SDIO
• Kết nối không dây: Wi-Fi (802.11 b/g/n), BLE V4.2
• Onboard Components: RST and BOOT buttons, WS2812 RGB LED (GPIO12)
• Storage & Communication: SIM card slot, TF card slot, Type-C connector
• Mạng Ethernet: LAN8720 Ethernet Network Port

Hình 1: Trên cùng view of the LILYGO T-Internet ESP32 module, showing the ESP32-WROVER-E chip, Ethernet port, and various components.

2. Hướng dẫn cài đặt

2.1 Nguồn điện

Connect a DC 5-12V power source to the module via the Type-C USB connector. Ensure the power supply provides stable voltage trong phạm vi xác định.

2.2 Cài đặt trình điều khiển

The module uses a CH9102 USB to TTL chip. Before connecting to your computer for programming, you may need to install the appropriate drivers for your operating system. Drivers are typically available on the manufacturer's website or through common CH9102 driver packages.

2.3 SIM and TF Card Insertion

The module includes slots for a SIM card and a TF (MicroSD) card. Carefully insert the cards into their respective slots on the underside of the board, ensuring correct orientation. Refer to Figure 2 for slot locations.

Hình 2: Dưới cùng view of the module, highlighting the SIM card and TF card slots.

2.4 T-PCIE Module Integration

The LILYGO T-Internet module supports various LILYGO T-PCIE modules for extended functionality. Align the T-PCIE module with the dedicated connector on the T-Internet board and gently press to secure it. Ensure proper alignment to avoid damage.

3. Hướng dẫn vận hành

3.1 Hoạt động cơ bản

• Bật nguồn: After connecting the power supply, the module will power on.
• Nút đặt lại (RST): Press this button to restart the ESP32 microcontroller.
• Boot Button (BOOT): This button is typically used to put the ESP32 into bootloader mode for flashing new firmware. It is usually pressed while holding RST, then releasing RST, sau đó thảasing BOOT.
• WS2812 RGB LED: An addressable RGB LED is connected to GPIO12, allowing for visual feedback in your applications.

3.2 Kết nối mạng

• Mạng Ethernet: Connect an Ethernet cable to the LAN8720 port for wired network access.
• Wi-Fi: Utilize the ESP32's integrated Wi-Fi (802.11 b/g/n) for wireless network communication.
• Bluetooth: The module supports BLE V4.2 for short-range wireless communication.

3.3 Lập trình và Phát triển

The LILYGO T-Internet ESP32 module can be programmed using various development environments, including the Arduino IDE with ESP32 board support, or the ESP-IDF (Espressif IoT Development Framework). Detailed programming examples and libraries are available on the official LILYGO GitHub repository.

Kho lưu trữ GitHub: github.com/Xinyuan-LilyGO/T-Internet-COM

Figure 3: T-Internet-COM Pinmap, illustrating the various GPIOs and connections for development.

4. Bảo trì

• Xử lý: Handle the module with care to avoid damaging sensitive electronic components. Avoid static discharge.
• Môi trường: Keep the module in a dry environment, away from extreme temperatures, humidity, and corrosive substances.
• Vệ sinh: If necessary, gently clean the board with a soft, dry brush or compressed air. Do not use liquids or abrasive cleaners.
• Cập nhật chương trình cơ sở: Regularly check the official GitHub repository for firmware updates and security patches to ensure optimal performance and stability.

KHAI THÁC. Xử lý sự cố

5.1 Các vấn đề về nguồn điện

• Không có đèn báo nguồn: Ensure the Type-C cable is securely connected and the power supply is providing 5-12V DC. Test with a different cable or power adapter if available.

5.2 Các vấn đề kết nối

• USB không được phát hiện: Verify that the CH9102 drivers are correctly installed on your computer. Try a different USB port or cable.
• Wi-Fi/Ethernet Connection Failure: Check your network configuration in the firmware. Ensure the Ethernet cable is properly connected and your router is functioning. For Wi-Fi, confirm SSID and password are correct.

5.3 Programming Errors

• Upload Failed: Ensure the correct board (e.g., ESP32 Dev Module) and COM port are selected in your IDE. Try holding the BOOT button while initiating the upload, then releasing nó.
• Code Not Running: Verify your code logic and ensure all necessary libraries are included. Check serial monitor output for error messages.

For more detailed troubleshooting and community support, please visit the official LILYGO GitHub repository.

6. Thông số kỹ thuật

Figure 4: Module dimensions, showing approximate length, width, and height.

Hình 5: Hếtview of key features including MCU, memory, bus interfaces, and power.

7. Thông tin bảo hành

LILYGO products typically come with a limited manufacturer's warranty covering defects in materials and workmanship. The specific duration and terms of the warranty may vary. Please retain your proof of purchase. For detailed warranty information, refer to the official LILYGO webtrang web hoặc liên hệ với bộ phận hỗ trợ khách hàng.

8. Hỗ trợ kỹ thuật

For technical assistance, documentation, and community support, please refer to the following resources:

• LILYGO chính thức Webđịa điểm: Visit the LILYGO website for product information and updates.
• Kho lưu trữ GitHub: The primary resource for code examples, schematics, and community discussions. github.com/Xinyuan-LilyGO/T-Internet-COM
• Online Forums/Communities: Engage with other users and developers in relevant online forums for troubleshooting and project ideas.