Abstract: An electronic device is provided. The electronic device includes a connector including one or more signal terminals for communication with an external electronic device, at least one processor operatively connected to the connector, and a memory operatively connected to the processor, the memory stores instructions, when executed by the at least one processor, cause the at least one processor to identify a connection to the external electronic device through the connector, receive one or more pieces of information about power that is supported by the external electronic device from the external electronic device in the connection to the external electronic device through the connector, and identify the external electronic device, based on a part of the one or more pieces of power information. Other embodiments are possible.

Abstract: An electronic device for connecting with external devices and an operating method thereof are provided. The electronic device includes a communication interface, and at least one processor. The processor is configured to attempt a connection with a second external device through the communication interface, based at least on group device information of a first external device connected to the electronic device, and connect with a third external device through the communication interface, based at least on a failure of connection with the second external device, and refine the group device information of the first external device, based at least on information of the connected third external device.

Abstract: An electronic device is provided. The electronic device includes a connector including one or more signal terminals for communication with an external electronic device, at least one processor operatively connected to the connector, and a memory operatively connected to the processor, the memory stores instructions, when executed by the at least one processor, cause the at least one processor to identify a connection to the external electronic device through the connector, receive one or more pieces of information about power that is supported by the external electronic device from the external electronic device in the connection to the external electronic device through the connector, and identify the external electronic device, based on a part of the one or more pieces of power information. Other embodiments are possible.

Abstract: An electronic device for connecting with external devices and an operating method thereof are provided. The electronic device includes a communication interface, and at least one processor. The processor is configured to attempt a connection with a second external device through the communication interface, based at least on group device information of a first external device connected to the electronic device, and connect with a third external device through the communication interface, based at least on a failure of connection with the second external device, and refine the group device information of the first external device, based at least on information of the connected third external device.

Abstract: Provided are a method and apparatus for setting an electronic blackboard system. In response to a user input to a control apparatus requesting setting of the electronic blackboard, sensitivity of an IR camera is set so that visible rays are detected. A projector projects an image with a presentation region and a first guider therein for alignment. The IR camera transmits a first captured image of the presentation region, including at least a portion of the first guider, to the control apparatus. The projector is then controlled to project to the screen at least a portion of a second guider corresponding to the first guider in the first image received from the IR camera. The user may then make positional adjustments to the IR camera or projector using the second guider.