A method is provided for operating a door lock system with a knob. An apparatus controls transmission of displacement or rotational mechanical energy. A bolt is coupled to a door and the bolt is coupled to an input rod and an output rod. The bolt locks and unlocks a door in response transmission of displacement or delivery of rotational mechanical energy. At least one of an interior or exterior knob is coupled to the bolt and the apparatus that controls transmission of displacement or rotational mechanical energy. An energy source is used that is coupled to the apparatus that controls transmission of displacement or rotational mechanical energy. A wireless communication device is used to communication with a mobile device. Authorization is provided with the mobile device to engage the apparatus that controls transmission of displacement or rotational mechanical energy and allows a door user to manually open the door.