The SIM800A Quad Band GSM/GPRS Module with RS232 Interface is a complete Quad-band GSM/GPRS solution that supports transmitting Voice, SMS, and data information with low power consumption. It features an Embedded AT for cost savings and fast time-to-market for customer applications.
GSM Module
GPRS Module
Do not connect to the wrong COM port.
Do not send incorrect AT commands.
Connect using the correct COM port at 9600 baud rate for communication.
Use Putty or any other terminal software to send AT commands.
5V interface for direct communication with MCU kit.
Connect using USB to Serial connector and find the correct COM port in Device Manager.
Connect using RS232 to TTL converter.
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