SIM900A GSM Modem With SMA Antenna (GSM Module)

description:-

the gsm/gprs modem-rs232, from easy electronics, is built with dual band gsm/gprs engine- sim900a, works on frequencies 900/ 1800 mhz. The modem comes with rs232 interface, which allows you connect pc as well as microcontroller with rs232 chip (max232).

features :-

1.compatible with arduino, raspberry pi, arm, avr, pic, 8051, etc. - can also be directly connected    to computer via serial port (use gsm tester or write your own software)

2.best suited for gsm based microcontroller projects (better than sim300 and other gsm modems)

3.option for connecting mic and speaker directly to gsm modem for calls (line in also available)

4.supports communication through rs232 with db9 connector, ttl pins & i2c pins

5.call sms gprs facility - mic input, line input & speaker output pins