Minecraft:Pressure Plate

All pressure plates.

A pressure plate is a non-solid Minecraft:block that produces a Minecraft:redstone signal when stood on by an Minecraft:entity, with multiple variants that have different properties.

Variants

Obtaining

Template:Main

Usage

Template:See also Template:Hatnote A pressure plate can be used to detect entities on top of it (players, mobs, items, etc.).

File:Pressure plate.png

Pressure plates on fences.

File:Fluids and pressure plates.png

Pressure plates being used to contain water and lava.

To place a pressure plate, Template:Control it while aiming at the face of a block adjacent to the destination space.

A pressure plate can be placed on top of:

blocks that have a rigid support shape (Minecraft:cauldrons, Minecraft:composters, Minecraft:hoppers, Minecraft:stone, etc).
blocks that have a center support shape (Minecraft:glass panes, Minecraft:fences, Minecraft:walls, Minecraft:stone, etc).
any block that has a full top surface, as these blocks fall under the previous two categories ( Minecraft:stone, Minecraft:scaffolding, upside-down Minecraft:stairs, closed Minecraft:trapdoors, etc).
- Some exceptions may apply.

A pressure plate cannot be attached to the side or bottom of any block, but attempting to make such an attachment may cause the plate to attach to the top of a block under the destination space. For example, if a fence is on the ground, attempting to attach a plate to the side of the fence causes the plate to be attached to the top of the ground next to the fence instead. More information regarding placement on non-Minecraft:conductive blocks can be found at Minecraft:Opacity/Placement.

A Minecraft:minecart traveling on Minecraft:rails can activate a pressure plate diagonally adjacent to a curved rail's corner, but not one next to a straight rail (a stone pressure plate cannot be activated by a minecart, but it can be activated by the minecart's passenger, if present). For a block that works similarly to pressure plates but was designed specifically for minecarts, see Minecraft:Detector Rail.

A pressure plate is not solid (it is not a barrier to entity movement). A block under a pressure plate can provide a solid surface underneath it (for mobs to walk across, items to fall on, etc.), but when a pressure plate is placed on a block with a small Minecraft:collision box, such as a fence or nether brick fence, it is possible for entities to move through the pressure plate while still activating it (walking through it horizontally, or falling through it vertically). Thus, a pressure plate on a fence can be used to detect entities without stopping them. An entity moving fast enough can phase through a pressure plate without actually activating it.

Pressure plates are 0.0625 blocks high (1⁄16 of a block) when inactive and 0.03125 blocks high (1⁄32 of a block) when active, but because they are not solid they do not affect the position of entities "on top" of them, so a player on top of a pressure plate is actually standing on the block beneath it.

Unlike similar redstone components, pressure plates cannot be broken by Minecraft:water and Minecraft:lava, as such they are often used to contain these fluids. Template:IN, pressure plates can be Minecraft:waterlogged.

Behavior

File:Pressure plate as power source.png

Pressure plate placement and behavior.

A pressure plate activates when an entity is on top of it (specifically, when the entity's Minecraft:collision box intersects with a space occupied by the pressure plate that's as large as the pressure plate itself, but is 0.25 blocks (Template:Frac of a block) tall instead of 0.0625 blocks (Template:Frac of a block), which may include entities flying close to the ground). The activation conditions vary depending on the type of pressure plate.

After being activated, the pressure plate periodically<ref group="n">The time period is specific to the type of pressure plate. This period is 10 game ticks for weighted pressure plates and 20 game ticks for other pressure plates.</ref> checks if there are still entities on top of it. If none are found, the pressure plate returns to its inactive state.

While active, a pressure plate provides weak power to its direct neighbors and strong power to the block below itself.