Fully compatible with Arduino / Freaduino and Mega; Free serial port connecting, you can select Hardware Serial port(D0/D1) control or Software Serialport(D2/D3) control it.
The GPRS Shield is configured and controlled via its UART using simple AT commands.
SIM900 all pins breakout. Not just the UART port and debug port be layout, but also all pins on SIM900 be layout to the 2.54 standard pitch;Super capacitor power supply for the RTC.
EFCom not only can use the button for power on , but also can use the digital pin of Arduino to power on and reset the SIM900 module.
Quad-Band 850/ 900/ 1800/ 1900 MHz Class 4 (2 W 850/ 900 MHz); Class 1 (1 W 1800/1900MHz);GPRS multi-slot class 10/8; GPRS mobile station class B;Compliant to GSM phase 2/2+.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.72 inch
Height : 0.51 inch
Length : 5 inch

Item Weight: 0.64 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B06XXFN6F4

Product Description

GPRS GSM Shield EFCom SHD EFCOMDescription: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 tocontrol 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.Features:Fully compatible with Arduino / Freaduino and Mega.Free serial port connecting, you can select Hardware Serial port(D0/D1) control or Software Serial port(D2/D3) control it.SIM900 all pins breakout. Not just the UART port and debug port be layout, but also all pins on SIM900 be layout to the 2.54 standard pitch.Super capacitor power supply for the RTC.Quad-Band 850/ 900/ 1800/ 1900 MHzGPRS multi-slot class 10/8GPRS mobile station class BCompliant to GSM phase 2/2+Control via AT commands (GSM 07.07 ,07.05 and EFCOM enhanced AT Commands)Supply voltage range : 3.1 - 4.8VLow power consumption: 1.5mA(sleep mode)Dimension:68.33x53.09mm(Same dimension of Arduino main board)Package Including1 * GPRS Shield -EFCom1 * 4 Frequency Antenna