UM1547 datasheet(12/51 Pages) STMICROELECTRONICS

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AT command list

UM1547

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DocID023232 Rev 5

3.1

AutoReconnect

The AutoReconnect command is used to automatically reconnect by both SPP and IAP

profiles. The 1st device in the pairing table will be used for the reconnection target. When

the pairing table is deleted, Auto Reconnect will be disabled as well. The reconnect function

may be turned on or off with this command. It will not affect the settings. This setting is NOT

saved in NVM.

3.1.1

Syntax

At+ab AutoReconnect [enable/disable]

Where [Enable/Disable] is an “e” or “E” character to enable this parameter and a “d” or “D”

character to disable it.

3.1.2

Responses

If the change is accepted, the response is:

AT-AB AutoReconnectDone Enabled or AT-AB AutoReconnectDone Disabled

3.2

AutoReconnectSetup (Beta version)

The AutoReconnectSetup command is used to configure the AutoReconnect feature.

3.2.1

Syntax

At+ab AutoReconnectSetup [interval in seconds]

Interval: the time, in seconds, between attempts; 3-100, +/- 5

The target device is the first entry in the pairing table. Reconnections will continue after

every interval, until the feature is disabled or deleted.

This setting is saved in NVM.

3.2.2

Responses

If the operation is successful, the response is:

AT-AB AutoReconnectSetupDone

3.3

Bond

The Bond command is used to initiate bonding with a specified device. A personal

identification number (PIN) is also required with this command. The bond table contains up

to 5 devices. Note: the 6th device will overwrite the oldest one.

3.3.1

Syntax

AT+AB Bond [BD Addr] [PIN]

Where [BD addr] is the BD address of the remote device with which to bond and [PIN] is the

PIN code to use (up to 16 characters).

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