Container Fullness

A comparator behind a container outputs a signal proportional to its contents: 0 when empty, 1 for a single item, up to 15 when full. This chest starts half full, so the output is about 8. Shift+right-click the chest to change its fill. Hoppers move items between containers (one per ~0.4s), and droppers eject on a pulse — the basis of item clocks, counters and storage automation.