Irrigation Controller

FIG. 1 is a first top perspective view of an irrigation controller, according to the new design; FIG. 2 is a second top perspective view of the irrigation controller; FIG. 3 is a first bottom perspective view of the irrigation controller; FIG. 4 is a second bottom perspective view of the irrigation controller; FIG. 5 is a front elevational view of the irrigation controller; FIG. 6 is a top plan view of the irrigation controller; FIG. 7 is a right side elevational view of the irrigation controller; and, FIG. 8 is a left side elevational view of the irrigation controller. The broken lines in the figures are included for the purpose of depicting unclaimed portions of the irrigation controller that form no part of the claimed design. The rear side view and the bottom plan view of the irrigation controller are not included as no portion of these views is claimed.