Redstone in Minecraft is most commonly found deep underground in the form of Redstone ore. When mined, it gives Redstone Dust which can be used by players to create complex redstone circuits.

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How can I randomly power one of several wires in Minecraft?

Given 5 wires (possibly more), I want to press a Reset button, and have exactly one of those wires, randomly selected, become active - and remain that way (until the next button press). What is a ...
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8answers
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How to find a player's redstone clock (or other aggressive circuitry)?

I'm an admin for a minecraft server where I suspect one of the players has set up a fast cycle redstone circuit. The reason is the server uses what seems to me to be too high of cpu for only one or ...
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9answers
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How do I create a very long delay with Redstone?

The only things I've found so far are a cart method (which ceased working in 1.6), a dispenser method (utilizing the decay on dropped items, but this requires occasional feeding), and a binary counter ...
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4answers
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In Minecraft how do I randomise the output in a redstone circuit?

I have 5 buttons and only one of these can be correct, all others must be false. These 5 outputs will go into 2 outputs, in between there needs to be a circuit which changes which single button out ...
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How can I preserve an active redstone circuit when I leave the chunk it's built in?

When I set up a redstone circuit for rotating blocks (with pistons) or flashing redstone lights, everything's fine, but when I exit that zone, the current is not saved, and when I return later, the ...
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Minecraft save-all timer

I have recently found that my MC world does not auto-save (Don't answer on how to do that), so I have to /save-all every 5 minutes or so. However, I have created a timer hooked up to a /save-all ...
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2answers
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How can I control a sequence of outputs via a single input?

Ok, so I'm making a map which needs a level system. By level system I mean: Push the button first time,output A lights up. Push the button second time,output B lights up. Push the button third ...
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How do redstone torches (circuits) work in Minecraft?

I tried reading the minecraftwiki page on the subject, but without an understanding of precisely how the torches work, none of it makes sense. I have a lot of questions, so even an article explaining ...
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2answers
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How do you lengthen a redstone button signal in Minecraft?

I made a little redstone circuit to open a door (using pistons) with a button, but I was wondering how I could make the door stay open a little longer. I don't want to use a lever as I want it to ...
12
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4answers
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How can I get my redstone to activate adjacent pistons?

I'm trying to create my first circuit in minecraft: a - pressure plate p - piston d - dirt - or | - redstone   a----dddd pppp Pistons are placed over the dirt and there's water under ...
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5answers
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What is Redstone used for in Minecraft?

I've found several piles of Redstone in Minecraft, but I can't seem to find a coherent explanation as to what it does or how to use it. Does anyone know what it's used for, and how to use it ...
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How can I make a Random Number Generator with vanilla redstone?

I'm working on a game for my Minecraft server that includes the element of chance. The idea is that there are 6 buttons. One of them (randomly determined by redstone circuitry) results in wealth, ...
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3answers
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Is Minecraft Turing-Complete?

Minecraft has the redstone wires mechanism that can be used to build circuits. Is Minecraft Turing-Complete, i.e. can it be used to simulate a Turing Machine (if we ignore the problem of infinite ...
15
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1answer
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Keep some chunks loaded in Minecraft SMP

I am looking for a mod or something which would allow me to keep some chunks loaded on the SMP server I administrate. In fact, it is a redstone circuit including a clock under a huge mob trap which ...
16
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5answers
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Is there a more efficient way to wire a row of pistons?

I want to create two sets of two adjacent pistons with a two block gap between them for a melon farm. It seems as though I'm using a prodigious amount of redstone for each section. This is my first ...
6
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1answer
246 views

Any more compact self-activating piston designs?

I need to push incoming blocks in a new direction using a piston activated as soon as there is a new block to be pushed. In the screenshot, if the block from below is pushed in front of the piston, it ...
5
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2answers
704 views

A more efficient mob pushing redstone circuit?

I am trying to build a mob system where the pistons push the mobs. The screen shot below shows my current design, but I'm thinking there has to be a more space/redstone efficient way to get at this. ...
15
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5answers
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Is there a way to shut down a Nether portal with redstone?

Since it is no longer possible for flowing water to deactivate a Nether portal, you can't use pistons to push blocks into the nether portal and finally you can't move the obsidian powering the portal ...
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How can I bring zombies down to one-punch kills in Minecraft?

There's something about zombies in Minecraft that if you merely drop them down 23 blocks for the fall damage, they take two punches to kill, rather than one punch like other mobs. (23 ½ is the same, ...
11
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2answers
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How can you turn a rapid pulser on and off?

We have built a number of large rapid pulsers for Floor D of Fosco's server's community wiki. D, obviously, is for disco. Disco seen from the deejay's point of view, with two jukeboxes. I just wish ...
8
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2answers
916 views

How do I light this hollow tower of Redstone Lamps?

I want to light this tower, but controllable from a switch. I'd like to be able to expand this up or down in a modular way. The example in the image is being powered with a static setup, just faked ...
6
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3answers
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How can I get this redstone blast door to do what I want?

I'm working on expanding my Minecraft Redstone experience and contraptions. Here, I have a 2 blocks high x 3 blocks wide section of a tunnel with a track approaching it that is meant to act as a ...
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2answers
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Fixing permanently dead redstone torches in Minecraft?

There seems to be a newish bug in Minecraft where redstone torches burn out sooner than they ought to, and never recover. (I think I heard that this can happen if you use /time set, but this is a ...
10
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2answers
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Is there a maximum limit to the number of blocks a piston can push?

For example: could you effectively push a line of blocks off into the distance? Is it limited by the loaded chunks? Or a shorter upper limit countable in blocks?
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2answers
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Is it possible to lift a block from the bottom of the map to the top using pistons?

Can you raise/lower a single block by an arbitrary distance using pistons? Will this work with chests?
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Gate to allow only one player to pass through

On my server I have a quiz which you need to take before you can go to most of the areas, build etc... However, sometimes people try to cheat by going with friends into there. I want some kind of ...
6
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1answer
958 views

How to make a block disappear after a certain period of time

So I am making a 'magic trail', which is essentially wherever you walk and jump, a block will be placed below you. Unfortunately, the trail will always stick around and never go away. After a while ...
6
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2answers
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How do I power Redstone through a block?

I have seen this in YouTube videos: a person places a Redstone Torch on the wall like in the picture, and it activates a circuit. No matter how many layouts I have tried I can't seems to get a power ...
4
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3answers
700 views

Best way for connecting this redstone vertically?

i am currently working on a big RAM in minecraft and i want to connect the inputs of each row vertically: I want to connect the yellow lines. It should be fast not use too much space.
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1answer
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Activating one piston while deactivating another at the same time?

I just wondered if it is possible to activate one piston while deactivating another (activated) piston with the same lever. The idea is to pull some blocks into the wall while other blocks are pushed ...
3
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2answers
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How do I move redstone signals vertically (for a vertical sticky-piston door)?

I'm trying to make a variation on the sticky-piston hidden door, in which two sticky pistons are activated by a pressure plate in a corridor to reveal either a hidden room, or a treasure chest, or ...
2
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1answer
264 views

How can I make the redstone repeat a task x times and reset it self?

So I'm trying to make a redstone circuit that can repeat a task x amount of times and then reset it self. I was thinking of using a dropper and a hopper and use the hopper redstone signal (retrieved ...
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Can I configure a Redstone Energy Cell to emit a redstone signal if it is full?

I have Magmatic Engines powering a Redstone Energy Cell. Is there a way to configure the cell to emit a redstone signal once it's full, so I can use said signal to rurn off my engines so they dont ...
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1answer
518 views

Confusion on Redstone Wire Transmission

According to the wiki on Redstone Circuits: Redstone Wire powers itself, the block below it, or the block it is pointing to. I'm having trouble understanding what this is saying. According to the ...
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1answer
628 views

Minecraft Mob-Spawning in vanilla 1.8 server [closed]

I am making my own server and I am trying to make mobs not spawn in a certain area, I can't do a /kill @e[type=!Player] command because I have armor stands! So I was wondering what you guys thought. I ...