Smart cap for a liquid container

FIG. 1 is a top front perspective view of a smart cap for a liquid container;

FIG. 2 is a top rear perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is side elevation view thereof;

FIG. 7 is an opposing side elevation view thereof;

FIG. 8 is a rear elevation view thereof;

FIG. 9 is a top plan view thereof; and,

FIG. 10 is an exploded view thereof.

The broken lines depict portions of the smart cap for a liquid container that form no part of the claimed design.