User Manual

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TCPcommunication
GPSOrientation
Note:The GPSantennamustbeplacedoutsidebeforeitcanobtainastableGPSlocationdataoutput.
SendAT+CGSNPWR=1command(OpentheGPSpower)
SendAT+CGNSTST=1command(ReceiveGPSdatafromtheserialport)
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GPS_debug
IftheGPSantennahasbeenplacedoutside,youshouldgettherightdatasoon.
WhenyouwanttopauseGPSdataoutput,youcansentAT+CGNSTST=0commandtopauseGPSdataoutput.
WhenyouwanttoturnoffGPSfunction,youcansendAT+CGNSPWR=0commandtoturnofftheGPSpower.SendAT+CPOWD=1toshutdownthe
SIM808chip.
Moreexcitinginstruction,pleaserefertoATcommandonthepageoftheend.
Thesetwotestcodeareverysimple,andeasytobeunderstood.OnlyneedtoenterthecorrespondingserialATcommands,youwouldachievethe
correspondingfunctions.
SIM808LowPowerConsumptionMode
MinimumFunctionalityMode
ThesystemwillbereducedtoasimplestmodeunderMinimumFunctionalityMode.Itwillsavemorepowerconsumptioninthismode.
AT+CFUN=<fun><fun>=0,1,4
AT+CFUN=0:Minimumfunctionalitymode.Inthismode,youcanstillcontinuetousetheserialport,buttheATcommandwithRFandSIMcardfeatures
willbedisable.
AT+CFUN=1:Fullfunctionmode(default).
AT+CFUN=4:Airplanemode.Inthismode,youcanstillcontinuetousetheserialport,buttheATcommandwithRFandSIMcardfeatureswillbe
disable.
MorefeaturespleaserefertoATcommands
Instructions