Ebyte E78-DTU User Manual page 20

Command
character
CGMR
( read version
ID )
Command
character
CGSN
( read product
serial number
identification )
command
character
CGBR
( set baud rate )
Copyright©2012–2023, Chengdu Ebyte Electronic Technology Co., Ltd.
+CGMM=E78-470LN22S
OK
Precautions
command
command format
type
query
AT+CGMR?
command
Parameter
Description
Return
<revision>: version number
value
description
AT+CGMR?
example
+CGMR=V4.4
OK
Precautions
command
Command format
type
query
AT+CGSN?
command
Parameter
Description
Return
<sn>: product serial number identification
value
description
AT+CGSN?
example
+CGSN=0539349E00032523
OK
Precautions
Command
Command format
type
Query
AT+CGBR?
command
Set
AT+CGBR=<baud>
command
Parameter
Description
Return
<baud>: product serial number identification
value
description
AT+CGBR=9600
Example
OK
response
+CGMR=<revision>
OK
Response
+CGSN=<sn>
OK
Response
+CGBR=<baud>
OK
OK
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