User's Manual

S3-915M User manual
26
Precautions
After receiving the instruction, the communication module will reply to OK
and restart the communication module. No further AT commands are
received until the restart is complete.
Command
character
Command
Type
Command Format
response
CLPM
(Enable low
power
consumption)
Test
command
AT+CLPM=?
+CLPM:"Mode"
OK
Setting
command
AT+CLPM=<mode>
OK
Parameter
Description
<mode>: Low power mode
1: The device enters low power consumption
Return value
description
Example
AT+CLPM=1
OK
Precautions
After entering low power consumption, send the serial port command again
to wake up;
Because the UART start part byte may be transmitted incorrectly when
transmitting above 40kbps, AT+CLPM=0 may be recognized as an error
and return "+CME ERROR". It is recommended to use "000000000D0A"
(hexadecimal) for wakeup.
Command
character
Command
Type
Command Format
response
ECHO
(Instruction
echo)
Query
command
AT+ECHO?
+ ECHO:"Mode"
OK
Setting
command
AT+ECHO=<mode>
OK
Parameter
Description
<mode>: command echo;
0: The instruction turns off the echo.
1: The command turns on echo.
Return value
description
Example
AT+ECHO =1
OK
Precautions
Turn on the echo command and return to the corresponding configuration
command. The command is powered off and not saved.