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SIM7670C 4G LM137 with Antenna(GSM 4G Foldable)- ADIY
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The ADIY 4G LTE modem is equipped with a SIM card socket, an SMA antenna connector, a DC power jack, and an RS232 interface. It supports various wireless communication modes including LTE-TDD, LTE-FDD, GSM, GPRS, and EDGE.
This board is centered around the SIMCOM A7670C LTE module and is furnished with an RS232 interface. The RS232 interface allows for effortless connectivity to a computer or laptop using a USB to Serial connector, or to a microcontroller using an RS232 to TTL converter. Additionally, a 3-pin header provides access to a 1.8V level UART interface, enabling direct interfacing with microcontrollers. Communication with the A7670C module is achieved through the utilization of AT commands.

| Input Voltage | 7-12V DC |
| Module | A7670C by SIMCOM |
| Frequency Bands |
LTE-FDD : B1/B3/B5/B8 LTE-TDD : B34/B38/B39/B40/B41 GSM: 900/1800MHz |
| Temperature GNSS |
-40°C~85°C |
| Size |
70x46.2x14.4mm |
LTE-FDD : B1/B3/B5/B8
LTE-TDD : B34/B38/B39/B40/B41
GSM: 900/1800MHz
-40°C~85°C
70x46.2x14.4mm