The ornamental design for smart controller hub, as shown and described.
The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
1. Smart controller hub
1.1 is an isometric view of the design for a smart controller hub;
1. 2 is a front elevation view of the smart controller hub;
1. 3 is a right side elevation view of the smart controller hub;
1. 4 is a left side elevation view of the smart controller hub;
1. 5 is a top plan view of the smart controller hub;
1. 6 is a bottom plan view of the smart controller hub; and
1. 7 is a rear elevation view of the smart controller hub.
The parts of the smart controller hub shown in solid black in reproductions 1.6 and 1.7 form no part of the claimed design. The neutral grey background in all reproductions is included for the purpose of providing contrast and forms no part of the claimed design.