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Feature

Embedded TCP/UDP stack - allows you to upload data to a web server | RTC supported| Selectable serial port | Speaker and Headphone jac
Note: This is new version (version 64M), SMS MMS support:multimedia message and Short Message Service - so that you can send small amounts of data over the network (ASCII or raw hexadecimal)
The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present on-board.
Application: M2M (Machine 2 Machine) Applications.Remote control of appliances.Remote Weather station or a Wireless Sensor Network.Vehicle Tracking System with a GPS module.Good to learn GSM/GPRS mobile phone development, remote control equipment development, wireless meter reading, smart home appliances, ultra long distance control, etc..
Cautions: Make sure your SIM card is unlocked. It is without an insulating enclosure. Please observe ESD precautions specially 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). Computer debugging USB--TTL : Powered by: 5V-26V, recommended 2A 5V power supply.

Description

* SODIAL is a registered trademark. ONLY Authorized seller of SODIAL can sell under SODIAL listings.Our products will enhance your experience to unparalleled inspiration.
SODIAL(R) SIMCOM SIM900 GSM GPRS Quad-Band Modules 2G Development Shield Board for Arduino UNO R3 Mega with antenna and Nano Sim Adapter
SIM900 Shield GPRS expansion board is 100% compatible with all standard Arduino development board.
material:plastic
color:blue
Quad-Band 850/900/1800/1900 MHz
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.
Power select - select the power supply for GPRS shield(external power or 5v of arduino)
Power jack - connected to external 4.8~5VDC power supply
Antenna interface - connected to 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
Low power consumption - 1.5mA(sleep mode)
Industrial Temperature Range - -40 to 5 Celsius +8
Packing list:
1x SIM900
1x GSM antenna
1 set Nano Sim Adapter kits
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.