Controller

FIG. 1 illustrates a front view of a first embodiment of a controller. FIG. 2 illustrates a rear side view of the controller shown in FIG. 1 . FIG. 3 illustrates a left side view of the controller shown in FIG. 1 . FIG. 4 illustrates a right side view of the controller shown in FIG. 1 . FIG. 5 illustrates a top view of the controller shown in FIG. 1 . FIG. 6 illustrates a bottom view of the controller shown in FIG. 1 . FIG. 7 illustrates a perspective view of the controller shown in FIG. 1 . FIG. 8 illustrates another perspective view of the controller shown in FIG. 1 . FIG. 9 illustrates a front view of a second embodiment of the controller. FIG. 10 illustrates a rear side view of the controller shown in FIG. 9 . FIG. 11 illustrates a left side view of the controller shown in FIG. 9 . FIG. 12 illustrates a right side view of the controller shown in FIG. 9 . FIG. 13 illustrates a top view of the controller shown in FIG. 9 . FIG. 14 illustrates a bottom view of the controller shown in FIG. 9 . FIG. 15 illustrates a perspective view of the controller shown in FIG. 9 ; and, FIG. 16 illustrates another perspective view of the controller shown in FIG. 9 . Broken lines are for illustrative purposes only and form no part of the claimed design.