An apparatus and method for controlling the emitted color of visible light
according to the current communication state in a visible light
communication (VLC) device. The method includes storing one or more
communication states and emitting colors that are correspondingly matched
to the one or more communication states to indicate each of the various
communication states. The VLC also checks, which can be based upon
selection of a VLC mode, the current communication state and an emits a
color that corresponds to the current communication state and emits the
checked color of light to provide a visible light signal that indicates
communication status to a user.