SIM900A BOARD 1800/1900 MHZ GSM GPRS MODULE (Non-PTA Approved)

The GPRS GSM Shield provides you a way to use the GSM cell phone network to receive data from a remote location, it delivers GSM/GPRS 850/900/1800/1900MHz signals for Audio, SMS, and GPRS Service. It is compatible with all boards which have the same form factor (and pinout) as a standard Arduino Board. This GPRS/GSM shield is configured and controlled via its UART using AT commands. The GPRS Shield Also has 6 GPIOs,2 PWMs, and 1 ADC(They are all 2V8 logic), which can be controlled by AT commands of the Controller. Furthermore, to make your project more flexible and efficient, we have prepared for you two different antennas, One is the traditional GPRS antenna, which is more sensitive; another one is the onboard antenna, this antenna is more compact and easy to install, you can put the whole project to a case more easily, with this kind of antenna.

You can have a browse and learn the basic usage of this Shied in the Instructables

Specifications:
Quad-Band 850 / 900/ 1800 / 1900 MHz – would work on GSM networks in all countries across the world.
GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2+
Class 4 (2 W @ 850 / 900 MHz)
Class 1 (1 W @ 1800 / 1900MHz)
Control via AT commands – Standard Commands: GSM 07.07 & 07.05 – Enhanced Commands: SIMCOM AT Commands.
Short Message Service – so that you can send small amounts of data over the network (ASCII or raw hexadecimal).
Embedded TCP/UDP stack – allows you to upload data to a web server.
RTC supported.
Selectable serial port.
Speaker and Headphone jacks
Low power consumption – 1.5mA(sleep mode)
Industrial Temperature Range – -40°C to +85 °C
Size:8.5×5.7x2cm(approx)
Cautions:
Make sure your SIM card is unlocked.
The product is provided as-is without an insulating enclosure. Please observe ESD precautions, especially in dry (low humidity) weather.
The factory default setting for the GPRS Shield UART is 19200 bps 8-N-1. (Can be changed using AT commands).
Power select – select the power supply for the GPRS shield(external power or 5v of Arduino)
Power jack – connected to external 4.8~5VDC power supply
Antenna interface – connected to the external antenna
Serial port select – select either software serial port or hardware serial port to be connected to GPRS Shield
Hardware Serial – D0/D1 of Arduino
Software serial – D7/D8 of Arduino
Status LED – tell whether the power of SIM900 is on
Net light – tell the status about SIM900 linking to the net
UART of SIM900 – UART pins breakout of SIM900
Microphone – to answer the phone call
Speaker – to answer the phone call
GPIO, PWM, and ADC of SIM900 – GPIO, PWM and ADC pins breakout of SIM900
Power key – power up and down for SIM900
Package Includes:
1 x GPRS Shield PCBA
1 x Antenna
1 x PCB Antenna
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