Datasheet

Entering '-4', '0' or '4'

would

succeed since these are all valid values for this command.

Execute Mode

'Execute' mode will cause the specific command to 'run', if possible, and will be used when the command name is

entered with no additional parameters.

AT+FACTORYRESET

You might use execute mode to perform a factory reset, for example, by executing the AT+FACTORYRESET command

as follows:

AT+FACTORYRESET

OK\r\n

NOTE: Many commands that are means to be read will perform the same action whether they are sent to the command

parser in 'execute' or 'read' mode. For example, the following commands will produce identical results:

AT+BLEGETPOWERLEVEL

-4\r\n

OK\r\n

AT+BLEGETPOWERLEVEL?

-4\r\n

OK\r\n

If the command doesn't support execute mode, the response will normally be 'ERROR' on a new line.

Read Command Mode '?'

'Read' mode is used to read the current value of a command.

Not every command supports read mode, but you generally use this to retrieve information like the current transmit

power level for the radio by appending a '?' to the command, as shown below:

AT+BLEPOWERLEVEL?

If the command doesn't support read mode or if there was a problem with the request, you will normally get

an 'ERROR' response.

If the command read was successful, you will normally get the read results followed by 'OK' on a new line, as shown

below:

AT+BLEPOWERLEVEL?

-4\r\n

OK\r\n

Note: For simple commands, 'Read' mode and 'Execute' mode behave identically.