This SIM900A GSM Modem Module with SMA Antenna is built with Dual Band GSM/GPRS engine-SIM900A, works on frequencies 900/ 1800 MHz. The Modem is coming with RS232 interface, which allows you connect PC as well as microcontroller with RS232 Chip(MAX232). The baud rate is configurable from 9600-115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. It is suitable for SMS,Voice as well as DATA transfer application in M2M interface. Using this modem,you can make audio calls, SMS, Read SMS, attend the incoming calls and internet etc through simple AT commands.

Features

• Status of Modem Indicated by LED

• Simple to Use & Low Cost

• On board switching type power supply regulator

• RS232 output

• SMA connector with GSM Antenna.

• Input Voltage: 5V-12V DC

Applications

• SMS based Remote Control & Alerts
• Security Applications
• Sensor Monitoring
• GPRS Mode Remote Data Logging

Package Includes:

• 1 x SIM900A GSM MODEM
• 1 x SMA ANTENNA

Tutorial Links :

• Interface GSM Module to Arduino-Send and Receive SMS
• Interface GSM Module to 8051 Micro Controller-Send and Receive SMS