SIMCOM Basic AT

Basic AT Commands

Excute	Feedback	Read	Feedback	Write	Feedback	Test	Feedback	Description
AT+CSQ	CSQ:20,0	-	-	-	-	-	-	signal quality, max at 31
AT+CRESET	OK	-	-	-	-	-	-	reset module
AT_CGMR	-	-	-	-	-	-	-	Check module firmware version
AT_CSUB	-	-	-	-	-	-	-	Check module version and IC type
-	-	-	-	AT+CPOWD=1	1= normal power off / 0 = emergancy power off	-	-	reset module
-	-	AT+CPIN?	+CPIN:READY, OK	AT+CPIN="123456"	enter sim password	-	-	check if sim card present
-	-	AT+CREG?	+CREG:0,1, OK; +CREG:0,2 not registered	-	-	-	-	register network?
-	-	AT+COPS?	+COPS:0,0,"CHINAMOBILE" or empty CHINAMOBILE is the service provider	-	-	-	-	check card service provider
AT+ATE1	-	-	-	-	-	-	-	on/off AT commands return info
AT+CGMI	SIMCOM_Ltd	-	-	-	-	-	-	Check the module manufacturer
AT+CGMM	SIMCOM_SIM900A	-	-	-	-	-	-	Check the module model type
AT+CGSN	869988012018905	-	-	-	-	-	-	Check the module IMEI, worldwide unique
AT+CNUM	+CNUM:"","15902020353",129,7,4	-	-	-	-	-	-	Check the number of current sim card, not all kinds of card support this function
-	-	AT+CPSI?	-	-	-	-	-	check UE system info
AT+IPR	-	AT+IPR?	-	AT+IPR=115200	-	-	-	check baudrate, AT+IPR=0 for auto detect.
AT+GSV	1418B05SIM800C24_BT (bluetooth version)	-	-	-	-	-	-	Check module version, vendor, name, etc
AT+CNMP	-	-	-	-	-	-	-	network selection commands 2:automatic, 13: GSM only, 38: LTE only, 48: Any modes but LTE
AT+CMEE	-	AT+CMEE?	-	AT+CMEE=2	-	-	-	1: use only error number code; 2: More verbose details of errors
AT+CFUN	-	AT+FCUN?	-	-	-	-	-	Set Phone Functionality: 0=minimum Phone Functionality 1= Full Phone Functionality, 4=disable RF circuits
-	-	-	-	-	-	-	-	-

AT+GSV

SIM800

AT+CGMR
Revision:1418B06SIM800C24
OK

AT+CGMR
Revision:1418B08SIM800C24_BT  (S2-1068S-Z1L1E)
OK

AT+GSV
SIMCOM_Ltd
SIMCOM_SIM800C
Revision:1418B08SIM800C24_BT
OK

SIM868

Revision:1418B05SIM868M32

SIMCOM_Ltd
SIMCOM_SIM868
Revision:1418B02SIM868M32_EAT

AT+GSV

SIMCOM_Ltd
SIMCOM_SIM7000G
Revision:1529B05SIM7000G
OK