LILYGO T-ETH-Lite ESP32 Development Board User Manual

1. ആമുഖം

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. ഉൽപ്പന്ന സവിശേഷതകൾ

• മൈക്രോകൺട്രോളർ: ESP32-WOVER-E
• മെമ്മറി: 16MB ഫ്ലാഷ്, 8MB PSRAM
• വയർലെസ് കണക്റ്റിവിറ്റി: Wi-Fi 802.11 b/g/n, Bluetooth BR/EDR V4.2 + BLE
• വയർഡ് കണക്റ്റിവിറ്റി: RTL8201 Ethernet
• Onboard Peripherals: ടിഎഫ് കാർഡ് സ്ലോട്ട്
• ബട്ടണുകൾ: Reset, Boot
• അളവുകൾ: ഏകദേശം 2.32 x 1.1 x 0.43 ഇഞ്ച് (5.9 x 2.8 x 1.1 സെ.മീ)
• വിപുലീകരണക്ഷമത: Supports POE Shield (sold separately)

3. പാക്കേജ് ഉള്ളടക്കം

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

ചിത്രം 3.1: 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. ഹാർഡ്വെയർ ഓവർview

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 ബോർഡ് ലേഔട്ട്

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

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

4.2 അളവുകൾ

ചിത്രം 4.3: 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 പിൻഔട്ട് ഡയഗ്രം

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

ചിത്രം 4.4: 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. സജ്ജീകരണ നിർദ്ദേശങ്ങൾ

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

5.1 ഹാർഡ്‌വെയർ കണക്ഷൻ

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. വൈദ്യുതി വിതരണം: 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. ഇഥർനെറ്റ് കേബിൾ: Connect a standard Ethernet cable to the RJ45 port for wired network access.
5. TF കാർഡ് (ഓപ്ഷണൽ): Insert a formatted TF card into the slot if your application requires data storage.

5.2 സോഫ്റ്റ്‌വെയർ പരിസ്ഥിതി സജ്ജീകരണം

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. ഡ്രൈവറുകൾ ഇൻസ്റ്റാൾ ചെയ്യുക: Ensure drivers for your USB-to-TTL adapter are installed on your computer.
4. Clone GitHub Repository: ഉദാample 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. ബോർഡ് തിരഞ്ഞെടുക്കുക: In your IDE, select the appropriate ESP32 board (e.g., "ESP32 Dev Module").
2. പോർട്ട് തിരഞ്ഞെടുക്കുക: Choose the serial port corresponding to your USB-to-TTL adapter.
3. Enter Bootloader Mode: To upload code, press and hold the ബൂട്ട് button on the T-ETH-Lite board, then press the പുനഃസജ്ജമാക്കുക button. Release പുനഃസജ്ജമാക്കുക, തുടർന്ന് റിലീസ് ചെയ്യുക ബൂട്ട്. The board is now in bootloader mode.
4. അപ്‌ലോഡ് കോഡ്: Compile and upload your sketch or program.

6. പ്രവർത്തന നിർദ്ദേശങ്ങൾ

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.
• വൈ-ഫൈ പ്രവർത്തനം: Configure your ESP32 code to connect to your desired Wi-Fi network (SSID and password).
• TF കാർഡ് ആക്സസ്: Use the appropriate libraries (e.g., SD.h in Arduino) to read from and write to the TF card.
• GPIO Control: 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. പരിപാലനം

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

• ശ്രദ്ധയോടെ കൈകാര്യം ചെയ്യുക: Avoid dropping the board or subjecting it to physical stress.
• സ്റ്റാറ്റിക് ഡിസ്ചാർജ്: Always handle the board in a static-safe environment to prevent damage to sensitive electronic components.
• വൈദ്യുതി വിതരണം: Use a stable 5V power supply. Incorrect voltage ബോർഡിന് കേടുവരുത്തും.
• പരിസ്ഥിതി വ്യവസ്ഥകൾ: Operate the board within typical indoor temperature and humidity ranges. Avoid extreme temperatures, moisture, and dust.
• വൃത്തിയാക്കൽ: If necessary, gently clean the board with a soft, dry brush or compressed air. Avoid liquids.

8. പ്രശ്‌നപരിഹാരം

നിങ്ങൾക്ക് പ്രശ്നങ്ങൾ നേരിടുകയാണെങ്കിൽ, ഇനിപ്പറയുന്ന പൊതുവായ ട്രബിൾഷൂട്ടിംഗ് ഘട്ടങ്ങൾ പരിശോധിക്കുക.

1. ബോർഡ് ഓണാക്കുന്നില്ല:
   • 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).
   • നിങ്ങളുടെ നെറ്റ്‌വർക്ക് ഇൻഫ്രാസ്ട്രക്ചർ (റൂട്ടർ, സ്വിച്ച്) ശരിയായി പ്രവർത്തിക്കുന്നുണ്ടെന്ന് ഉറപ്പാക്കുക.
4. Wi-Fi കണക്ഷൻ പ്രശ്നങ്ങൾ:
   • 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 കാർഡ് കണ്ടെത്തിയില്ല:
   • Ensure the TF card is inserted correctly and fully seated.
   • Verify the TF card is formatted to a compatible file system (e.g., FAT32).
   • Check your code for correct TF card initialization and pin assignments.

9 സ്പെസിഫിക്കേഷനുകൾ

10 പിന്തുണയും വിഭവങ്ങളും

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 Webസൈറ്റ്: www.lilygo.cc