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Gravity: CAT1 A7670G Global 4G IoT Communication Module

SKU: TEL0163

The Gravity A7670G 4G Communication Module is a 4G CAT1 module that supports LTE-TDD, LTE-FDD, and GSM modes, with global coverage for reliable low-speed data transmission. It features a downlink speed of 10Mbps and an uplink speed of 5Mbps, making it ideal for dependable communication needs. The module integrates various network protocols such as TCP/IP, FTP, FTPS, HTTP, HTTPS, and DNS, providing a wide range of options for data transmission. Additionally, SMS functionality supports MT/MO/CB/Text and PDU modes for flexible text message interaction. The design includes power and network signal indicators, antenna interfaces, and other features to facilitate project development and validation. Users can easily monitor the module's status and connectivity, enhancing debugging and testing efficiency. Coupled with detailed AT commands, the provided communication routines enable quick mastery of module operation and configuration, expediting project success.

Overview of CAT1: A7670G 4G Communication Module

Downloadable Resources

  • Docs
  • Tech Specs

    • 1. Getting Started: Driver Installation Guide

    his article provides a comprehensive guide to installing drivers for the A7670G Module on a Windows 11 PC, detailing hardware and software preparation, step-by-step installation instructions, and ensuring smooth integration with system components.

    2. Configuration Guide for Internet Access on LattePanda

    This guide explains how to set up internet access on a LattePanda device using a 4G module, covering hardware requirements and detailed operational steps including SIMCOM driver installation and network configuration.

    3. AT Command Handbook

    The AT Command Handbook offers a thorough guide on using AT commands for managing network modules, initiating phone calls, sending SMS, establishing MQTT connections, audio playback, and optimizing power usage.

    4. Usage Example for Arduino-Modify Baud Rate

    This article provides a comprehensive guide on modifying the baud rate for Arduino projects using a 4G module. It includes hardware preparation, software setup, connection diagrams, and step-by-step instructions to adjust the baud rate and ensure successful communication with AT commands.

    Specification

    Parameter Details
    Operating Voltage DC 5V
    SIM Card Socket Push-lock
    Module Interfaces One PH2.0 UART input interface, One USB-Type C input interface, One power input interface, One audio output interface
    External Power Sources Terminal connectors: 5-12V; USB-Type C: 5V
    Dual Antennas ANT: 4G signal antenna interface
    Network Frequency Support LTE-TDD: B38/B39/B40/B41;
    LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66;
    GSM: 850/900/1800/1900MHz
    4G Communication Rate CAT1 (Uplink speed: 5Mbps, Downlink speed: 10Mbps)
    LED Status Indicators Power Status, Network Status
    Applicable Regions Worldwide
    Operating Temperature Range -40°C to 85°C
    Product Dimensions 60×52mm

    Pinout

    TEL0163-Pinout

    Interface Name Description
    ANT The 4G signal antenna interface, connects to GSM antenna
    UART UART interface (interface voltage level 3.3V-5V)
    USB-Type C USB device interface, used for communication and parameter configuration with a computer
    Power IN External power supply required when using the UART interface (5V-12V)
    Audio OUT External 8Ω 1.0W speaker
    SIM Card Insert a SIM card

    Important Notes:

    • When using the PH2.0 socket for module communication, an external power supply of 5V-12V is required.

    • Net - Network signal indicator:

      • Steady blue light: Searching for a network.
      • Rapid blue flashes (once every 1 second): Network registration completed.

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