FIG. 1 is a perspective view of a controller showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and
FIG. 8 is second perspective view showing the controller; and,
FIG. 9 is a perspective view showing the controller for reference.
The broken lines in the drawings illustrate portions of the controller that form no part of the claimed design.