The SIM900A is a complete Quad-band GSM/GPRS solution in a SMT module which can be embedded in the customer applications. Featuring an industry-standard interface, it delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption.

This Modem can work with any GSM network operator SIM card just like a mobile phone with its own unique phone number.

SIM900A GSM/GPRS modem is plug and play modem with RS232 serial communication supported. Hence Advantage of using this modem will be that its RS232 port can be used to communicate and develop embedded applications.

Applications like SMS Control, data transfer, remote control and logging can be developed. This modem supports features like voice call, SMS, Data/Fax, GPRS etc.

This modem uses AT commands to work with supported features.

Note that to be connected to a cellular network, the modem requires a SIM card provided by a network provider.


Sim900A Pinout

sim900a pinout

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