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SIM800A Quadband GSM/GPRS Module convertible as Shield for Arduino
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Product Description
     This module is built with SIMCOM Make SIM800 Quad-band GSM/GPRS engine, works on frequencies 850 MHz, 900 MHz, 1800 MHz and 1900 MHz. It is very compact in size and easy to use as plug in GSM Modem. The baud rate is configurable from 9600-115200 through AT command.Initially Modem is in Auto baud mode.The modem needs only two wires (Tx, Rx) except Power supply to interface with microcontroller/Host.