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18
Chapter AT Command Configuration Instructions
a) Instruction format:
<CMD>[op][para1, para2, para3,...]<CR><LF>
: command prefix
CMD: control command character
[op]:
instruction operator. Can be the following:
"=": Indicates parameter setting.
"?": Indicates the current value of the query parameter.
"": means to execute the command.
"=?": Indicates querying the parameters of the setting command.
[para-n]: Indicates the set parameter value, or specifies the parameter to be queried
<CR><LF>: carriage return line feed, ASCII 0x0D 0x0A
instruction
Description (common command)
CGMI
Read manufacturer's logo
CGMM
read module ID
CGMR
read version ID
CGSN
Read product serial number identification
CGBR
Set the baud rate of UART
CJOIN MODE
Set the read Join mode (OTAA, ABP)
CDEVEUI
Set to read DevEUI (when OTAA is connected to the network)
CJOIN MODE
Set the read Join mode (OTAA, ABP)
CDEVEUI
Set to read DevEUI (when OTAA is connected to the
network)
CAPPEUI
Set to read AppEUI (when OTAA accesses the network)
CAPPKEY
Set to read AppKey (when OTAA accesses the network)
CDEV ADDR
Set to read DevAddr (when ABP is connected to the network)
CAPPSKEY
Set to read AppSkey (when ABP accesses the network)
CNWKSKEY
Set to read NwkSkey (when ABP accesses the network)
CFREQ BANDMASK
Set the read frequency point mask (FreqBandMask)
CULDL MODE
Set to read Ul/Dl mode (same frequency or different
frequency)
CWORKMODE
Set the read working mode (normal working mode)
CCLASS
Set the read class type (Class A/C)
REGION CFG
Set to read region files
(AS923/AU915/EU868/KR920/IN865/RU864/US915)
CBL
read battery level
CSTATUS
read node status
CJOIN
Initiate OTAA network access
DTRX
Send and receive data frames
DRX
Get the latest received data from the Rx buffer and clear the
