send SMS ( AT+CMGS="<the_number>" ):
SIM800L.sendSMS(number, message, callback)send unicode SMS ( AT+CMGS="<the_number>" ):
SIM800L.sendUnicodeSMS(number, message, callback)receive SMS ( +CMTI: "SM",<total> ):
SIM800L.receiveSMS(callback)get one/all SMS ( AT+CMGR=<index>, AT+CMGL="ALL"):
SIM800L.getSMS(indexOrFlag)delete all/one SMS ( AT+CMGD=<index>, AT+CMGDA="DEL ALL" ):
SIM800L.delSMS(indexOrFlag)initiate calls ( ATD<number>; ):
SIM800L.placeCall(number, callback)receive calls ( RING ):
SIM800L.receiveCall(callback)accept calls ( ATA ):
SIM800L.acceptCall(callback)know if call ended ( NO CARRIER ):
SIM800L.callEnded(callback)hangup call ( ATH ):
SIM800L.hangupCall(callback)reject calls ( AT+GSMBUSY ):
SIM800L.rejectCalls(mode, callback)use or not buzzer sound for incoming calls ( AT+CBUZZERRING ):
SIM800L.buzzerRing(mode, callback)toggle Net LED ( AT+CNETLIGHT ):
SIM800L.toggleNetLight(mode, callback)toggle using the Net LED as GPRS status indicator ( AT+CSGS ):
SIM800L.toggleNetLightIndicateGprsStatus(mode, callback)toggle opening or closing the mike ( AT+CEXTERNTONE ):
SIM800L.toggleMike(mode, callback)get module name & version ( ATI ):
SIM800L.nameVersion(callback)turn on verbose errors ( ATI+CMEE=2 ):
SIM800L.verboseErrors(callback)get SIM card number ( AT+CCID ):
SIM800L.simNum(callback)check network connection ( AT+COPS? ):
SIM800L.connStat(callback)check signal strength ( AT+CSQ ):
SIM800L.sigPow(callback)check battery state ( AT+CBC ):
SIM800L.battPow(callback)check the codepages supported by the module, for ex IRA,GSM,UCS2,HEX,PCCP,PCDN,8859-1..: ( AT+CSCS=? ):
SIM800L.codePages(callback)for locked SIM cards, to enter PIN before connecting to a network ( AT+PIN=<pin_code> ):
SIM800L.unlockPin(callback)