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GPS/GPRS/GSM Shield V3.0 (Arduino Compatible)
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INTRODUCTION
This is a GPS/GPRS/GSM shield from DFRobot. This shield with a Quad-band GSM/GPRS engine works on frequencies EGSM 900MHz/DCS 1800MHz and GSM850 MHz/PCS 1900MHz. It also supports GPS technology for satellite navigation. It's possible for your robot and control system to send messages and use the GSM network.
It is controlled via AT commands (GSM07.07 ,07.05 and SIMCOM enhanced AT Commands). And the design of this shield allows you to drive the GSM & GPS function directly with the computer and the Arduino Board. It includes a high-gain SMD antenna for GPS and a flexible GSM antenna 8.5cm(3.35") ( U.FL connector ).
This GPS/GPRS/GSM shield uses an embedded SIM908 chip from SIMCom. Featuring an industry-standard interface and GPS function, the combination of both technologies allows items, vehicles and people to be tracked seamlessly at any location and anytime with signal coverage.
SPECIFICATION
Power supply: 6-12v
Low power consumption (100mA@7v - GSM mode)
Quad-Band 850/900/18001900MHz
GPRS multi-slot class 10
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(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands)
Support GPS technology for satellite navigation
Embeded high-gain SMD antennas for GPS & GSM
Directly support 4*4 button pad
USB/Arduino control switch
Programmable switch for Arduino
LED indicators for power supply, network states and working status
Board Surface:Immersion Gold
Switches:
S1 -- Programming mode / Communication mode
S2 -- Controlling interface: USB / Arduino
Interfaces:
Embedded SIM card holder
Speaker & Mic Jack socket
Size: 81x70mm(3.19"x2.76")
Specifications for SMS via GSM / GPRS
Point-to-point MO and MT
SMS cell broadcast
Text and PDU mode
Specification for GPS
Receiver 42 channels, GPS L1 C/A code, High-performance STE engine
Sensitivity:
Tracking: -160 dBm
Cold starts: -143 dBm
Time-To-First-Fix:
Cold starts: 30s (typ.)
Hot starts: 1s (typ.)
Accuracy:Horizontal position: <2.5m CEP
Power consumption (GSM engine in idle mode):Acquisition 77mA,Tracking 76mA
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