LILYGO T-SIM7670G-S3 Development Board User Manual

1. Introducció

The LILYGO T-SIM7670G-S3 is a versatile development board designed for Internet of Things (IoT) applications requiring cellular connectivity and GPS capabilities. It integrates an ESP32-S3 microcontroller with a SIM7670G 4G LTE module, offering robust wireless communication, low-power operation, and support for various peripherals. This manual provides essential information for setting up, operating, and maintaining your device.

2. Producte acabatview

The T-SIM7670G-S3 board combines an ESP32-S3 for Wi-Fi and Bluetooth with a SIM7670G module for 4G LTE and GPS. It features a compact design, an integrated 18650 battery holder, and support for solar charging, making it suitable for remote and low-power applications.

Figura 2.1: Frontal view of the LILYGO T-SIM7670G-S3 development board, showing the ESP32-S3 module, SIM7670G module, USB-C port, and various pin headers.

Figura 2.2: Esquena view of the LILYGO T-SIM7670G-S3 development board, highlighting the integrated 18650 battery holder and power management components.

Figure 2.3: Physical dimensions of the LILYGO T-SIM7670G-S3 board: Length (L) 110mm, Width (W) 33mm, Height (H) 22mm.

Figure 2.4: Included components: 1. T-SIM7670G-S3 board, 2. LTE antenna, 3. PH2.0 battery cable, 4. 2x 16-pin headers, 5. GPS antenna.

3. Característiques

• Microcontrolador: ESP32-S3
• Mòdul cel·lular: SIM7670G (4G LTE Cat1, Global Bands)
• Connectivitat sense fils: 2.4 GHz Wi-Fi (802.11 b/g/n), Bluetooth 5 (LE)
• GPS: Integrated GPS functionality via SIM7670G
• Emmagatzematge: TF Card slot for external storage
• Gestió d'energia: Integrated 18650 battery holder, low-power design, supports solar charging
• Interfícies: USB Type-C for programming and power, various GPIO pins, I2C, SPI, UART, SDIO, I2S, CAN

4. Què hi ha a la caixa

The standard package for the LILYGO T-SIM7670G-S3 includes the following items:

• 1 x LILYGO T-SIM7670G-S3 Development Board
• 1 x 4G LTE Antenna
• 1 x Antena GPS
• 1 x PH2.0 Battery Cable
• 2 x 16-Pin Headers

Figure 4.1: The LILYGO T-SIM7670G-S3 development board and its accompanying accessories, including antennas and cables.

5. Instruccions de configuració

Follow these steps to prepare your LILYGO T-SIM7670G-S3 for operation:

1. Insereix la targeta SIM: Carefully open the SIM card slot on the SIM7670G module and insert a Nano SIM card. Ensure it is correctly oriented and locked into place.
2. Inseriu la targeta TF (opcional): If external storage is required, insert a TF (MicroSD) card into the designated slot.
3. Connecteu les antenes: Connect the 4G LTE antenna to the main antenna connector and the GPS antenna to its respective connector on the board. Ensure connections are secure.
4. Install 18650 Battery (Optional): If using battery power, insert an 18650 battery into the battery holder, observing correct polarity. Alternatively, connect an external battery via the PH2.0 connector.
5. Encès: Connect the board to a power source via the USB Type-C port or ensure the 18650 battery is charged. The board can also be powered via solar input if a solar panel is connected.
6. Connexió a l'ordinador: Use a USB Type-C cable to connect the board to your computer for programming and serial communication.

6. Instruccions de funcionament

The LILYGO T-SIM7670G-S3 is a development board, and its operation is primarily driven by custom firmware uploaded by the user. Basic operation involves:

• Programació: Develop your application using the ESP-IDF framework, Arduino IDE, or other compatible development environments. Upload the compiled firmware to the ESP32-S3 via the USB Type-C port.
• Comunicació cel·lular: Utilize the SIM7670G module for sending/receiving data over 4G LTE networks. This typically involves AT commands or dedicated libraries within your code.
• Funcionalitat GPS: Access GPS data from the SIM7670G module to obtain location information.
• Wi-Fi i Bluetooth: Leverage the ESP32-S3's built-in Wi-Fi and Bluetooth capabilities for local network communication or device pairing.
• Gestió d'energia: Monitor battery status and manage power consumption, especially when operating on battery or solar power. The board supports low-power modes for extended operation.

7. Especificacions

8. Solució De Problemes

• El dispositiu no s'encén: Ensure the USB-C cable is securely connected to a power source, or that the 18650 battery is correctly inserted and charged. Check the power switch if present.
• Sense connexió cel·lular: Verify the SIM card is correctly inserted and activated. Ensure the 4G LTE antenna is securely connected. Check network coverage in your area.
• El GPS no rep senyal: Ensure the GPS antenna is connected and has a clear view of the sky. GPS signal acquisition can take several minutes.
• Problemes de programació: Confirm that the correct USB drivers are installed on your computer. Verify the development environment (e.g., Arduino IDE, ESP-IDF) is configured for the ESP32-S3 and the correct board is selected.
• Funcionament inestable: Check power supply stability. Ensure proper heat dissipation if the module is running intensive tasks. Review your code for potential errors or resource conflicts.

9. Suport i Recursos

For detailed technical documentation, code examples, and community support, please refer to the official LILYGO GitHub repositories:

• Informació general: github.com/Xinyuan-LilyGO/LilyGO-T-A76XX
• Comparació de models: For distinctions between T-SIM7670G-S3-Standard and T-SIM7670G-S3, refer to: github.com/Xinyuan-LilyGO/LilyGo-Modem-Series/blob/main/docs/model_comparison.md

If you have further questions or require assistance, please contact LILYGO customer support.

10. Informació de la garantia

Si us plau, consulteu el document oficial del fabricant website or your point of purchase for detailed warranty terms and conditions. Warranty coverage typically includes defects in materials and workmanship under normal use. Keep your proof of purchase for warranty claims.