ADIY GSM SIMA7670C 4G Module?with?RS232

ADIY 4G LTE modem with SIM card socket, SMA antenna connector, DC power jack, and an RS232 interface supports wireless communication modes of LTE-TDD/LTE-FDD/GSM/GPRS/EDGE.

This board is built around the SIMCOM A7670C LTE module and comes with an RS232 interface. The RS232 interface enables easy connection with the computer or laptop using a USB to Serial connector or to the microcontroller using an RS232 to TTL converter. A 3-pin header also exposes a 1.8V level UART interface for direct interfacing with microcontrollers. Communication with A7670C is done using AT commands.