Redstone Power Sources

Below you will find all the blocks that are capable of producing a redstone signal.

Basic Power Sources

These are the standard sources of power.

Redstone Torch

Redstone torches Crafting

This is the most basic source of redstone power. A redstone torch powers the block that contains it, plus the block above it (if that's a solid block).

A redstone torch also acts as a signal inverter: that is to say, if power is transmitted to the block that a redstone torch is attached to, the torch will be switched off.

Block of Redstone

block of redstoneCrafting

This is the other "always-on" power source. It differs from a redstone torch in two ways:

minecraft switchesThe next three items are the basic switches that can be operated by players.

Button

Wood Stone

These can be crafted from either wood or stone. They are activated by a right click. Wooden buttons can also be activated by hitting them with an arrow, fired from a bow, a dispenser or by a skeleton.

Buttons provide a momentary pulse of power to their own block and the one they are attached to. The pulse from a stone button lasts 1 second; the pulse from a wooden button lasts 1.5 seconds, unless it is activated by an arrow, in which case the signal lasts until the arrow disappears (1 minute).

Lever

Crafting

This is a simple lever to switch redstone power on and off. The lever powers its own block and the one it's attached to. Note that levers are very cheap to make and are often the most convenient power source.

Pressure Plates

pressure plates Wood Stone

These are swiched on by a player or mob standing on them. The wooden pressure plate can also be activated by dropped items or arrows. Pressure plates power their own blocks and the block underneath them.

Variable Power Sources

These power sources are all sensors that output redstone power at various strengths, from 1 to 15. 15 is the same level as provided by basic power sources such as redstone torches and lever. "Signal strength" is the number of blocks a signal can travel along a redstone wire.

Weighted Pressure Plates

Heavy Light

Weighted pressure platesThese pressure plates provide a variable output depending how much stuff is on them. They are not activated by players or mobs, just by dropped items.

The light version is made of gold (yes, really) and its output power increases by one for every 4 items on it, reaching max power at 57. The heavy version is made of iron and weighs in increments of 42 blocks, reaching a maximum at 598 items.

Daylight Sensor

minecraft daylight sensorCrafting

Daylight sensors sense daylight! They output a signal that varies in strength depending how much sunlight they are getting. The signal is highest at noon, and less in the morning or evening. Daylight sensors are not affected by light from torches or lamps, only sunlight.

daylight sensorDaylight sensor

It easy to invert the signal from a daylight sensor so that it causes a light to be switched on at night.

You will need to collect some Nether Quartz before you can make a Daylight Sensor. Daylight sensors power their own block, but not the one below it.

Comparator

Crafting

One of the uses of a comparator is as a sensor for how full a container is. If a comparator is placed next to a container, pointing away from it, it will output a signal depending on how full the container is.

Traps

Tripwire

A tripwire is made by connecting two Tripwire Hooks with string. When a player, mob or item disturbs the string, the tripwire is activated, and both tripwire hooks and the blocks they are attached to are powered.

minecrft tripwire

Trapped Chest

Crafting

A Trapped Chest is made by combining a tripwire hook with a chest. When the chest is opened, both the chest and the block it is placed on will be powered. The signal is very weak in the single player game, but in multiplayer it increased by 1 for each person who is viewing the chest inventory at the same time.

Rails

Detector Rail

Detector rail Crafting

Detector rails are activated when a minecart is on them!