Apparatus and method for automatically detecting presence of external device in mobile terminal

1. An apparatus to control an external device, comprising:

a connector to electrically connect with the external device;

a connection detector comprising a switch in the connector to determine whether the external device is electrically connected to the connector; and

a controller to obtain voltage level information corresponding to the external device from the connector, to determine a type of the external device based on the voltage level information, and to control execution of a function of the apparatus based on the determined type,

wherein the voltage level information is different according to the type of the external device.

2. The apparatus of claim 1 , wherein the connection detector determines whether the external device is electrically connected to the connector based on a status of the switch in the connector.

3. A method to control an external device, comprising:

electrically connecting with the external device using a connector;

determining, by a switch in the connector, whether the external device is electrically connected to the connector;

obtaining, by a controller, voltage level information corresponding to the external device from the connector;

determining, by the controller, a type of the external device based on the voltage level information; and

controlling, by the controller, execution of a function of an apparatus based on the determined type,

wherein the voltage level information is different according to the type of the external device.

4. The method of claim 3 , wherein the electrical connection between the external device and the connector is determined based on a status of the switch in the connector.