Ingredients: Chest and Tripwire Hook. Description: A trapped chest is a block that stores items and which produces redstone power when opened. It can be visually distinguished from normal chests by a red coloration around the latch.
Trapped chests can be obtained by crafting, or by breaking previously-placed trapped chests.
To remove a trapped chest, mine it. Trapped chests can be broken using anything, but an axe is the fastest.
If the trapped chest contains items, the items will also be dropped when it is broken. If one half of a large trapped chest is destroyed, the corresponding items from the destroyed trapped chest will be dropped and the remaining trapped chest will continue to function as a small trapped chest.
Trapped chests can be used as containers and as redstone components.
To place a trapped chest, use the Place Block control on the face of a block adjacent to the space the trapped chest should occupy.
Ingredients: Redstone Torches, Nether Quartz and Stone. Description: A redstone comparator is a block used in redstone circuits to maintain, compare, or subtract signal strength, or to measure certain block states (primarily the fullness of containers).
To remove a redstone comparator, mine it. A redstone comparator can be broken instantly with anything, and drops itself as an item.
A redstone comparator will also be removed and drop itself as an item:
If its attachment block is moved, removed, or destroyed.
If water flows into its space.
If a piston tries to push it or moves a block into its space.
If lava flows into a redstone comparator’s space, the redstone comparator will be destroyed without dropping itself as an item.
A redstone comparator can be placed on the top of any opaque block with a solid full-height top surface (including upside-down slabs and upside-down stairs), as well as on hoppers. To place a redstone comparator, use the Place Block control.
Ingredients: Cobblestone and Redstone. Description: The dropper is a block that can be used to eject items, or push items into another container.
Droppers can be mined using any type of pickaxe. If mined without a pickaxe, it will drop nothing.
A dropper can be used as a container or as a redstone component to move items.
To place a dropper, use the Place Block control. A dropper can be placed so that its output faces in any direction, including up or down. When placed, the dropper’s output will face in the direction it was placed from.
A dropper cannot be moved by pistons, water and lava will flow around a dropper.