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Open AT ^® Release version:
3.13

Sample - DTMF Keyboard

Changes
Dependencies
Application Description

Changes

V3.00 : Initial revision

Dependencies

This sample depends on the following libraries :

Keyboard
This Keyboard sample ADL Library allows ADL applications to receive keyboard events.
MultiApp
This MultiApp sample library provides start/stop mechanism to handle several running ADL applications.

Application Description

As this application uses the MultiApp library, the following start/stop command has to be used to control the application execution.

AT+DKSTART (DTMF Keyboard start/stop command)

Command	Answers
AT+DKSTART?	+DKSTART: <state> OK
AT+DKSTART=?	+DKSTART: (0-1) OK
AT+DKSTART= <state>	+CME ERROR: 3 or OK

Parameter	Values range	Description	Default value
state	0-1	The current application running state. This parameter is stored in non-volatile memory.	0

The init entry point sent to the MultiApp library is the dk_init() function. The start/stop entry points linked to the +DKSTART command are the dk_run() and dk_stop() functions.

Once started, the application subscribe to the Keyboard library service, providing the dk_KeyboardHandler handler. This one will handle all key events, and will play DTMF tones both on module speaker, and on GSM network if a voice call is currently running.

Updated: Wed Apr 4 13:11:22 CEST 2007;