Introduction

This is a GPRS/GSM expansion board for Arduino.
The shield supports the frequency of EGSM 900MHz /DCS 1800MHz and GSM850 MHz /PCS 1900MHz, integrated with GPRS, DTMF and other functions.
It also supports DTMF. When enable the DTMF function, get the character feedback converted from the pressed button during the call, which can be used for remote control.
It is controlled by the AT command, you can directly start the function through the computer serial port and Arduino motherboard.
The SIM800C GPRS shield has a built-in SIM800H chip from SIMCom, with good stability.

Specifications

• Power Supply : 7-12V
• Low power consumption: 0.7mA current in sleep mode
• Low battery consumption (100mA @ 7V-GSM mode)
• GSM 850/900/1800/1900MHz
• GPRS multi-slot class 1 ~ 12
• GPRS mobile station class B
• GSM phase 2/2 + standard
• Class 4 (2W @ 850/900 MHz)
• Class 1 (1W @ 1800 / 1900MHz)
• Controlling via AT command
• USB /Arduino control switch
• Serial baud rate self-adaption
• Support DTMF
• LED indicator for power supply status, network status and operating mode.

Technical Details

• Dimensions: 77mm x 52mm x 27mm
• Weight: 26g
• Antenna length: 180mm

PINOUT

Resources

Download the code and libraries:
 

https://fs.keyestudio.com/KS0254