Redstone Dust item in Minecraft

What it does

A line of dust connects by itself to the components around it and climbs up or down one block. A signal starts at strength 15 and loses one level per block of wire, so after 15 blocks it dies out; a Redstone Repeater restores it to full strength. A Redstone Comparator can read a signal instead of simply carrying it.

Dust powers the block it runs into and the block it lies on, which lets one wire switch on a component on the other side of a wall. A lone piece of dust with no connections forms a cross that points in all four directions; use it to turn it into a dot that powers nothing around it.

Outside circuits, Redstone Dust is a key ingredient of the Piston, Observer, Compass, Clock and many other parts. In a Brewing Stand, it makes a potion last longer, and at the Smithing Table it serves as an armor trim material.