Getting started with AT Commands in SIM900A GSM Modem

PS-GSM/GPRS Modem is a multi-functional, ready to use, rugged and versatile modem for easy integration with RS-232 Interface. Options to connect phone handset by externally. It is a perfect solution to use with SMS gateways. The modem is fully type approved and can directly be integrated into projects with any or all the features SMS.. For more info and to download source code: https://www.pantechsolutions.net/wireless-boards/sim900a-gsm-modem

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