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GSM GPRS CAT1 A7670G Global 4G IoT Communication Module (Gravity: DFRobot) - TEL0163

GSM GPRS CAT1 A7670G Global 4G IoT Communication Module (Gravity: DFRobot) - TEL0163

The A7670G is an integrated wireless communication module supporting 4G CAT1 with uplink speeds of 5Mbps and downlink speeds of 10Mbps. It supports multiple bands (LTE-FDD, LTE-TDD, GSM) for worldwide compatibility and works with Raspberry Pi, Arduino, and LattePanda single-board computers. The module is controlled via AT commands and includes UART and USB interfaces. It also features a built-in microphone and audio amplifier for voice calls and SMS functionality.

Package Includes

  • 1 × CAT1 A7670G 4G Communication Module
  • 1 × 4G Antenna
  • 1 × Triple-cut Universal SIM Card Adapter
  • 1 × Gravity PH2.0-4P Communication Cable

GSM Board
319.95 AED 319.95 AED (Tax included)

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Features

  • AT Command Control: Simplifies usage by eliminating the need to understand complex network protocols.
  • Multi-Band Support: Compatible with LTE-FDD, LTE-TDD, and GSM bands.
  • SMS Functionality: Supports MT, MO, CB, Text, and PDU modes.
  • Network Protocols: Supports TCP/IP, IPV4, Multi-PDP, FTP, FTPS, HTTP, HTTPS, DNS, and more.
  • Comprehensive Communication: Enables data transmission, voice calls, and SMS.
  • USB Network Card: Can function as a 4G network card for single-board computers.

Specifications

Specification Details
Power Input Terminal Connector: 5-12V
USB Input Type-C: 5V
Voltage Levels 3.3V-5V
Physical Interface PH2.0-4P Gravity sequence standard
Audio Output Interface PH2.0-2P
Frequency Band 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 5Mbps, Downlink 10Mbps
4G Antennas MAIN Antenna: IPEX male connector ×1
Voice Microphone ×1
SIM Card Slot Push-lock type
LED Indicators Power Status: Red, Network Status: Blue
Operating Temperature -40°C ~ 85°C
Product Dimensions 60mm × 52mm

Pinout

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

Important Notes

  1. Using the PH2.0 socket for module communication requires an external 5V-12V power supply.
  2. Network signal indicator (Net LED):
    - Steady blue: Searching for network.
    - Rapid blue flashes (1/sec): Network registered.

A7670G Module Image

Common AT Commands

Command Significance Return Value
AT AT test command OK
ATE ATE1 sets echo, ATE0 disables echo OK
AT+CGMI Query module manufacturer OK
AT+CGMM Query module model OK
AT+CGSN Query product serial number OK
AT+CSUB Query module version and chip OK
AT+CGMR Query firmware version number OK
AT+IPR=9600 Set serial port baud rate to 9600 +IPR: OK
AT+IPR? Query current serial port baud rate +IPR: Baud Rate
AT+CRESET Reset module and auto register network OK
AT+CSQ Query network signal quality +CSQ: 14,99 OK
AT+CPIN? Query SIM card status (READY if recognized) +CPIN: READY
AT+COPS? Query current operator +COPS: OK
AT+CREG? Query network registration status +CREG: OK

Note: AT commands are case-insensitive.

Query Result Codes and Their Meanings

Result Code Meaning
OK Command executed successfully
CONNECT Connection successful
RING Incoming call detected
NO CARRIER No connection or disconnected
ERROR Invalid command or failure
NO DIALTONE No dial tone or incorrect mode
BUSY Currently in a call or busy server
NO ANSWER Connection timed out

Applications

  • IoT Data Transmission & Remote Control: Reliable wireless communication for IoT devices.
  • Mobile Device Monitoring: Track and monitor mobile devices remotely.
  • Logistics & Transportation: Enhance communication and tracking in transport sectors.
  • Warehousing & Theft Prevention: Monitor storage facilities and prevent theft.
  • Surveillance & Positioning: Useful for security and positioning applications.

Documents