The A7670G is an all - in - one wireless communication module with 4G CAT1, offering an uplink speed of 5Mbps and a downlink speed of 10Mbps. It supports a wide range of bands including LTE - FDD, LTE - TDD, and GSM, making it suitable for global use and most operators' networks. Compatible with Raspberry Pi, Arduino, and LattePanda single - board computers, it can serve as a 4G network card. Specific bands include LTE - TDD: B38/B39/B40/B41; LTE - FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66; and GSM: 850/900/1800/1900MHz. It integrates support for various network protocols like TCP/IP, IPV4, Multi - PDP, FTP, FTPS, HTTP, HTTPS, DNS. You can use AT commands for complex network communications without learning underlying protocols. It comes with UART and USB interfaces. Connect to other MCUs via UART or to computers as a USB network card. It supports mainstream OS drivers (Windows, Linux, Android). Also, it has a microphone and audio power amplifier, enabling data transmission, calls, and SMS. The SIM series offers multiple 4G products. Click for the 4G module selection guide. Features include AT - command control, multi - band support, various SMS modes, multiple network protocol support, data/voice/SMS functions, and USB network card functionality. Applications range from IoT data transmission to surveillance. Specification details: power supply 5 - 12V (terminal) or 5V (TYPE - C), 3.3V - 5V UART interface, PH2.0 - 2P audio output, global frequency band, CAT1 communication rate, etc. Documents include product wiki, schematic, AT command set, etc. Shipping list has the module, 4G antenna, SIM card adapter, and communication cable.
Using the A7670G module is easy. First, connect the 4G antenna to the MAIN antenna IPEX male connector. Insert a SIM card into the push - lock type SIM card slot. You can connect it to other MCUs or main controllers via the UART interface using the Gravity PH2.0 - 4P Communication Connection Cable. Or, connect it to a computer or a single - board computer like Raspberry Pi as a USB network card through the USB interface. When using it for calls or SMS, make sure the microphone is properly connected. Regarding power supply, you can choose a terminal connector with 5 - 12V or a TYPE - C with 5V. Pay attention to the voltage levels when using the UART interface. Keep the module in an environment with an operating temperature between - 40°C and 85°C. For maintenance, avoid exposing it to extreme conditions. If there are any issues with network connection, check the antenna and SIM card first. Regularly update the AT command set according to the official documents to ensure smooth operation.
