The GPRS Shield is based on SIM900 module from SIMCOM and compatible with Arduino and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS, and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and..
The onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 4.8--5.2V power supply, optional power on self starting (default) and control start. The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset. The size of the module is 49*50, all the ne..