DFRobot
Gravity: CAT1 A7670G Global 4G IoT Communication Module (Compatible with Raspberry Pi / LattePanda)
The A7670G is a global 4G CAT1 communication module that brings cellular connectivity to your IoT projects. With support for LTE-FDD, LTE-TDD, and GSM bands ...
The A7670G is a global 4G CAT1 communication module that brings cellular connectivity to your IoT projects. With support for LTE-FDD, LTE-TDD, and GSM bands worldwide, it provides reliable data transmission at up to 10 Mbps downlink and 5 Mbps uplink. It's compatible with Arduino, Raspberry Pi, and LattePanda via UART or USB.
Controlled entirely via AT commands, the module handles TCP/IP, HTTP, HTTPS, FTP, and DNS without requiring knowledge of underlying network protocols. It also includes a microphone and audio amplifier for voice calls and SMS, making it a versatile all-in-one cellular solution.
Key Features
- Global 4G CAT1 – 5 Mbps uplink, 10 Mbps downlink across LTE-FDD, LTE-TDD, and GSM bands
- AT Command Control – No complex protocol knowledge needed
- UART and USB Interfaces – Connect to MCUs via UART or use as a USB network card on Raspberry Pi, LattePanda, or PC
- Voice and SMS – Built-in microphone and audio amplifier for calls and text messages
- Network Protocol Support – TCP/IP, IPv4, Multi-PDP, FTP, FTPS, HTTP, HTTPS, DNS
- Gravity Connector – PH2.0-4P standard for easy wiring
- Wide Operating Temperature – −40°C to +85°C
Specifications
- Power Supply: 5–12V (terminal connector) or 5V (USB-C)
- UART Voltage: 3.3–5V
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Supported Bands:
- 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: 850/900/1800/1900 MHz
- Antenna: IPEX male connector (×1)
- SIM Slot: Push-lock type
- LED Indicators: Red (power), Blue (network status)
- Audio Output: PH2.0-2P
- Dimensions: 60 × 52 mm
- Operating Temperature: −40°C to +85°C
- USB Driver Support: Windows, Linux, Android
Ideal For
- IoT data transmission and remote monitoring
- Adding 4G connectivity to Raspberry Pi or LattePanda
- Remote asset tracking and fleet management
- Surveillance and security systems
- SMS alerts and voice call functionality
Package Contents
- 1× A7670G CAT1 4G Communication Module
- 1× 4G Antenna
- 1× Triple-Cut Universal SIM Card Adapter
- 1× Gravity PH2.0-4P Communication Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
- USB-C
- A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.
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Brands
Supplier page — dfrobot.com
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