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GSM-GPRS

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  1. GPRS Shield - EFCom is an ultra compact and reliable wireless module. This GPRS Shield is compatible with all boards which have the same form factor (and pinout) as a standard Arduino Board. EFCom is base on SIM900 4 Frequency GPRS module
    The GPRS Shield is configured and controlled via its UART using simple AT commands. Just plug this shield on the Arduino/ Freaduino board, you could easily use AT command to control EFCom Shild. You can use the 2 jumper blocks to connect the SIM900 URAT post to any pins within D0-D3(for Hardware/Software serial port). There is a switch on board , you can use it to select the connection of the UART port or Debug port , even be set on on Arduino, but by the switch and jumper block, the SIM900 can be connected to PC via FT233RL. 

     

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  2. RPI GSM Adapter is an adapter which accomplished communication by the direct connection between Raspberry Pi GPIO and the GSM/GPRS Module-EFCom Pro. We designed two GPIO interfaces in parallel connection,therefore, RPI GSM Adapter can not only connect to Raspberry Pi GPIO,but also connect to the modules compatible with Raspberry Pi GPIO(like our RPI TFT LCD Adapter、RPI BRD Adapter). In addition, for the circuit, we use the strong DC_DC external power supply, plus a toggle switch, so you can either choose the raspberry pie internal power supply, or select an external one.

     

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