If you need GPRS Shield, please purchase EFCom.
4 Frequency GPRS/GSM Module-EFCom Pro is an ultra compact and reliable wireless module. It is a breakout board and minimum system of SIM900 Quad-band GSM/GPRS module. It can communicate with controllers via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). This module support software power on and reset.
EFCom Pro is base on SIM900 4 Frequency GPRS module
The GPRS is configured and controlled via its UART using simple AT commands. Just connect on the Arduino/AVR/ARM/FPGA/CPLD board, you could easy to use AT command control it. EFCom Por can be connect to PC via FT233RL, recommend our FT232 Bee adapter
EFCom Pro IO List
:GND , +5V , RX , TX , PWR , RST .