Quectel BC66

AT command guide for: Quectel BC66 and BC66-NA

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Vendor's AT commands manual


General AT Commands

PurposeCommand String
Configure/start a manual network selectionAT+COPS =[,[,[,]]]

For example: AT+COPS=1,2,”26201”
Check the received signal qualityAT+QENG=0
Check the supported/configured bands of the UEAT+QBAND?
Check the network registration statusAT+CEREG?
Configure the APN for IP-based connectionAT+CGDCONT=1,"IP","<APN_name>"
Configure/activate the PSM modeAT+CPSMS=[[,<Requested_Periodic-RAU>[,<Requested_GPRS-READYtimer>[,<Requested_Periodic-TAU>[,<Requested_Active-Time>]]]]]

For example: AT+CPSMS=1,,,01000011,00001111
Check the firmware versionAT+CGMR
Check the hardware versionAT^HVER
Modify the supported bands of the UEAT+QBAND=[,[,[,…]]]

For example: AT+QBAND=2,8,20
Switch ON / OFF the transceiverAT+CFUN=1 / AT+CFUN=0

AT Commands for Communication Protocols

PurposeCommand String
Configure/activate Rel. 13 Early Release Assistance IndicatorAT+QNBIOTRAI=

Note: This command is only valid for the subsequent uplink traffic, so this command has to be repeated every time before an uplink data is sent, if Early Release Indicator needs to be used.
Configure/activate the eDRX modeAT+CEDRXS=,[,[,<Requested_eDRX_value>]]

For example: AT+CEDRXS=1
Modify eDRX parametersATMEDRXCFG=[,[,[,<Requested_eDRX_value>[,<Requested_Paging_time_window_value>]]]]

For example: AT
Create a TCP/UDP socket and send data to remote via socketAT+QIOPEN=,,<service_type>,<IP_address>/<domain_name>,<remote_port>[,<local_port>[,<access_mode>][,<protocol_type>]]

For example: AT+QIOPEN=1,0,"UDP","",5683,0,1
Send data to remote via socketAT+QISEND =,,

For example: AT+QISEND=0,12,"012345678901"