Description
Dispenser is crafted from seven cobblestone, one bow, and one redstone dust. It stores up to nine stacks of items and fires a random one each time it receives a redstone pulse. Behavior depends on the item: arrows and snowballs are launched as projectiles; TNT is lit and placed in front; water and lava buckets place the fluid then hold the empty bucket; spawn eggs spawn the mob; armor is equipped on an entity in front; shears shear sheep; flint and steel ignites the block ahead.
Dispensers are one of the most versatile redstone components. They enable automatic farms, traps, mob spawners, arrow turrets, flood/drain systems, and firework launchers. Facing direction is set at placement. A dropper has the same shape but simply drops items as entities without activating them — the key distinction for sorting systems. Dispensers can also be chained and clocked for rapid-fire sequences.