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Gravity: SIM7070G NBIoT Communication and GNSS Positioning Module

SKU: TEL0182

The SIM7070G NBIoT Communication and GNSS Positioning Module is designed for global compatibility, offering low power consumption and robust communication capabilities across various protocols and interfaces. It supports CAT-M, NBIoT, GSM, GPRS, EDGE, and GNSS satellite positioning, making it ideal for applications in smart logistics, asset tracking, smart cities, agriculture, and forestry. The module includes rich AT commands, detailed manuals, and certification from numerous global agencies, ensuring compliance and reliability in diverse regions. With its ultra-low power consumption—14mA in sleep mode—it is efficient and ready for immediate use without complex protocol development.

Overview of Global Version SIM7070G NB-IoT Module

Downloadable Resources

  • Docs
  • Tech Specs
    • 1. Getting Started

    This article provides step-by-step instructions for installing drivers and outlines essential first-time use precautions for SIM7070G modules, ensuring a smooth setup and safe operation.
    2. AT Command Handbook

    The AT Command Handbook is a comprehensive guide to utilizing AT commands for device control and network management, offering detailed explanations of common commands, MQTT connectivity, GNSS positioning, HTTP(S) routines, and function modes, aimed at efficient operation and problem-solving.
    3. Usage Example for Easy IoT-MQTT Connection

    This article offers a comprehensive guide on establishing an IoT-MQTT connection using the SIM7070G module, detailing hardware and software setup, and providing step-by-step MQTT configuration instructions with sample AT commands for seamless message publishing and server connectivity.
    4. Usage Example for GNSS-Positioning Information Reading

    This example reads GNSS positioning information through AT instructions.
    5. Usage Example for HTTP-GET Request

    This article guides you through the process of executing HTTP-GET requests using the SIM7070G module and Arduino, covering necessary hardware, software preparation, and detailed operational steps. It provides insights into setting server URLs, managing HTTP headers, and efficiently retrieving data from servers.

    Specification

    Power Supply

    Parameter Details
    Supply Voltage 3.3V-5V
    Device Current Consumption Approximately 40mA (Idle Mode)
    Current Consumption in Low Power Mode Approximately 14mA
    GSM/GPRS Power Levels GSM850: 4 (2W);
    EGSM900: 4 (2W);
    DCS1800: 1 (1W);
    PCS1900: 4 (1W)
    EDGE Power Levels GSM850: E2 (0.5W);
    EGSM900: E2 (0.5W);
    DCS1800: E1 (0.4W);
    PCS1900: E1 (0.4W);
    LTE Power Level 5 (0.125W), where the power level for Band31 and Band72 is class2 (0.4W)

    Data Transfer

    Parameter Details
    GPRS 85.6Kbps(UL), 107Kbps(DL)
    EDGE 296Kbps(UL), 236.8Kbps(DL)
    LTE Category M1 589Kbps (DL); 1119Kbps (UL)
    LTE Category NB1/NB2 127Kbps (DL); 158.5Kbps (UL)
    EGPRS Compatible with MCS 12

    Communication Interface

    Parameter Details
    UART Interface Type Gravity PH2.0-4P
    UART Interface Level 3.3V-5V
    USB Interface USB2.0 TYPE-C
    NBIoT Antenna Interface IPEX1
    GNSS Antenna Interface IPEX1
    SIM Card NBIoT/CAT-M/2G Card (Only supports 1.8V SIM card, not 3V card)

    Supported Bands

    Technology Supported Bands
    NBIoT B1 B2 B3 B4 B5 B8 B12 B13 B18 B19 B20 B25 B26 B28 B66 B71 B85
    CAT-M (LTE-HD-FDD) B1 B2 B3 B4 B5 B8 B12 B13 B14 B18 B19 B20 B25 B26 B27 B28 B66 B85
    GSM/GPRS GSM850MHz
    EDGE EGSM900MHz, DCS1800MHz, PCS1900MHz
    GNSS GPS, GLONASS, BeiDou, Galileo; Protocol: NMEA

    Size

    Parameter Details
    Product Size 49 mm×42 mm
    Mounting Hole Spacing 35 mm
    Mounting Hole Diameter 3.0 mm

    Pinout

    Functional Diagram

    Interface Description
    NB_RF Connects to NB antenna
    GNSS Connects to GPS positioning antenna
    UART UART interface (interface level 3.3V-5V)
    USB-Type C USB device interface, used for communication tests or parameter settings with a computer
    Power IN External 5-12V power supply is needed in case of insufficient power
    SIM Card Insert SIM card

    FAQ

    • Why does SIM7070G have no signal?

      Setting NB-IOT or CAT-M is easier to get signal

      AT+CMNB=2 //Set NB-IOT mode

      AT+CMNB=1 //Set CAT-M mode

      AT+CMNB=3 //Set CAT-M and NB-IOT combination mode

      Fixed LTE mode can register to the network faster

      AT+CNMP=38

    • Can SIM7070G use communication and GNSS positioning at the same time?
      SIM7070G cannot use communication and GNSS positioning functions at the same time.

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