Overview
GSM/GPRS
Modem-RS232 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. The onboard Regulated Power supply allows you to connect wide
range unregulated power supply . Using this modem,you can make audio calls,
SMS, Read SMS, attend the incoming calls and internet ect through simple AT
commands
GSM Sim 900:
Features:
- Dual-Band GSM/GPRS 900/ 1800 MHz
- RS232 interface for direct communication with computer or MCU kit
- Configurable baud rate
- Wire Amntenna ( SMA connector with GSM Antenna Optional )
- SIM Card holder.
- Built in Network Status LED
- Inbuilt Powerful TCP/IP protocol stack for internet data transfer over GPRS.
- Input Voltage: 12V DC
ARM
Schematic:
ARM code:
For ARM code CLICK HERE
ATMEL Schematic:
ATMEL code:
For ARM code CLICK HERE
PIC Schematic:
For PIC code CLICK HERE
