User Manual

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SIM808GPS/GPRS/GSMShield
Moduleinterfaceandprecautions:
1.Occupiedpins:D0,D1,D12,thedigitalpin"D12"isconnectedtoSIM808modulepowerGPIO.ItcanbeusedasSIM808moduleon/offcontrol.
2.SIM808onboardMICand3.5mmSIM808microphoneareusingthesameMICchannel,whenyoupluginyourmicrophone,theonboardMICwillbe
automaticallydisconnected.
3.BootswitchbuttonSIM808moduleswitch,shortpress1stostartSIM808,longpress3sturnitoff.
4.LED"ON"SIM808powerindicator,onlywhenyouconnectanexternalpower,themodulecanworkproperly.
5.NetGSMsignalindicator
1.FastFlash:SearchNetwork
2.Slowflash(3sonce):networkregistrationcomplete
6.Functionswitch
1.NoneVacantSIM808serialpintodownloadthesketch,pleasedialtohere.
2.USB_DBGWhentheexpansionboardpluggedontheArduino,dialtoheretomakeSIM808communicatewithPCtomakeadebug(ATdebugging).
3.ArduinoWhentheexpansionboardpluggedontheArduino,dialtoheretomakeSIM808communicatewithArduino.
ArduinoExamples
InthisSIM808ArduinoShields tutorialwewillcoverhowtouseArduinotodriveaSIM808GPS/GPRS/GSMShield.
DFRobot_SIM808isaopensourceArduinolibrarywithintuitivefunctions.Withanarrayoffunctionspackagedintoasinglelibrary,youcanfocusonyourproject
andnotwastetimestudyingcomplexATcommands.
Thistutorialincludes:
SendandreceiveGPRSdata
ReceiveGPSdata
SendandreceiveSMSmessages
Makeandreceivephonecalls
Preparation
Hardware:
1xArduinoUNO
1xSIM808ExpansionShield
1xExternalPowerSupply
1xSIMCard
Software:
ArduinoIDEClicktoDownloadArduinoIDEfromArduino®(https://www.arduino.cc/en/Main/Software)
DFRobot_SIM808libraryClicktoDownloadDFRobot_SIM808library(https://github.com/DFRobot/DFRobot_SIM808)
Steps:
1.InsertaSIMcardintotheSIMslotontheSIM808expansionshield
2.StacktheexpansionshieldontoanArduinoUNO
3.ConnectanexternalpowersourcetotheArduino