AT Command

Description

AT+LVL AT command sets the loudspeaker volume of the device.

Usage
Command Possible response(s)
+CLVL= +CME ERROR: 
+CLVL? +CLVL: +CME ERROR: 
+CLVL=? +CLVL: (list of supporteds) +CME ERROR: 

Examples

AT+CLVL=4
OK

KeywordsAT+LVL syntax, examples, parameters, error, input, response.

Test AT+LVL command with AT Command Tester





Try this script included in AT Command Tester Tool.

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Script-at_clvl.at

//Test AT+CLVL command

//AT+CLVL command is used to set/get loud speaker level

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

 

//Get the list of supported responses

AT+CLVL=?

 

//WAIT for 1 sec

WAIT=1

 

//Get the current loud speaker volume level

//Returned value should be in range 0-100

AT+CLVL?

 

//WAIT for 1 sec

WAIT=1

 

//Set loud speaker volume to 50

AT+CRSL=50

 

//WAIT for 1 sec

WAIT=1

 

//Confirm by reading back

AT+CLVL?

 

//WAIT for 1 sec

WAIT=1

 

//Set loud speaker volume level to 100

AT+CLVL=100

 

//WAIT for 1 sec

WAIT=1

 

//Confirm by reading back

AT+CLVL?


Output of above script in AT Command Tester Tool.

AT+CLVL=?

+CLVL: (0-100)

 

OK

AT+CLVL?

+CLVL: 33

 

OK

Loudspeaker sound level is 33.

AT+CRSL=50

OK

AT+CLVL?

+CLVL: 33

 

OK

Loudspeaker sound level is 33.

AT+CLVL=100

OK

AT+CLVL?

+CLVL: 100

 

OK

Loudspeaker sound level is 100.