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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Minecraft greed trap

I'm making a trap so that when an object is removed from the pressure plate, it blows up. But Im a bit stuck. The pressure plate does not change the state of the redstone torch on the endblock. I need ...
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What is the command to make a command block emit a redstone signal after 20 mins

How can I make a command block emit a redstone signal after 20 mins. I want it to emit a redstone signal after 20 mins to power another command block that will have /tp to send all players to a ...
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139 views

What's the easiest way to test the effects of chunk unloading on redstone circuits?

I'm building a long-distance signal transmission line for a railroad system. I think it will work because the player moves through chunks with the signal, but I want to test what happens to the ...
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2answers
927 views

How can I pause this redstone wall rotator as nessecary?

Back...with another Minecraft device. First off, I remember seeing a device like this on Reddit/YouTube a long time ago, and I've since forgotton how it was done. The way the device works ins ...
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Use a command block to “Sense” a player in a certain area

OK, so on my friends and my server, we have a skyblock map. My issue is when somebody joins they spawn above the Void. What I need is for a command block to determine if a player is near the Void and ...
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Why Isn't The /playsound Command Working In 1.7.2?

I am currently playing Minecraft 1.7.2 and am using a command block in a roller-coaster. I am trying to make a command block play the sound "moan1" from the "resources" folder in the directory ...
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How do I make a Stronghold locater?

I want to make a stronghold finder using TNT and redstone, but I don't know how. Every time I try it out I end up blowing myself up. This is my current design:
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minecraft command block /setblock is innacurate

I notice when I use command blocks and /setblock, i will always have to subtract the x-value by 1 for it to go in the correct place when i check where the coordinates for the block i want to be set. ...
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4k views

Server-Friendly Minecraft Elevator?

Is there a server-friendly redstone elevator I can build in Minecraft? The "zipper" version doesn't seem to work, unfortunately.
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55 views

How do I check if a player has eaten rotten flesh in minecraft?

I'm working on a illness thing, and I need to make it so it checks if a player has eaten some rotten flesh then gives the player infinite hunger.
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Is there a way to display a player name in /tellraw command?

like the title says, I'm looking for a way to display a player name in a /tellraw command which is run by a command block. Example: /tellraw @a {"text":"","extra":[{"text":"A player has won the ...
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Only allow certain blocks to be broken with mining fatigue

I want to make sure players cant break any blocks but wheat, while they have the mining fatigue effect. Is there a way to detect if they are trying to break the wheat or is there a way to only allow ...
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214 views

Making a command block with a command block

I am trying to make a spaceship that can go up and down basically. When it goes up, I want the command block to have a command. That's where I ran into a problem; I couldn't find a way to move a ...
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3k views

How to use setblock command for placing stone button on the left side of the command block

I tried to use the command setblock ~1 ~ ~ stone_button but then it places a button on air. I'm running Minecraft 14w11b snapshot from the 1.8 snapshots. Does someone know how to fix this? Pictures ...
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412 views

Briefly turning an output on when a switch is turned off

I'm not sure if there's a simple way to do this, or even a way at all. Basically what I have is a switch which is on, and two outputs. The first output is very simple - it goes on when the switch is ...
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346 views

How can I hold 256 bits of memory in Minecraft?

I need to build a type of memory that can hold 256 bits of memory, including on's and off's but it seems like the only way to do it would be with hundreds of RSNOR latches and I was just wondering if ...
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5k views

Minecraft Double Switch Door

I'm trying to make a base with a hidden door that can be opened from the inside and outside. I was wondering if there was a way of making a circuit that could be operated from two different switches ...
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725 views

Changing delay with NOT gate?

I just asked this question 30 minutes ago and was told to use a NOT gate It worked at first, but I had to delay one of the pistons 100%. The problem is when they are to go back to the starting ...
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472 views

How to simulate a deck of cards in Minecraft?

A dispenser can eject one of nine different items at random, simulating a deck of up to nine cards (as of 1.6 it is no longer biased toward certain slots). How would you simulate a deck of cards with ...
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75 views

Test for birch log in Minecraft

How do i get my command block to test for a birch log in 1.8? What are the new item names? I have already tried names like birch_log, 17:2 log:2 and so on. Google is against me on this as well.
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How to use a command block to welcome new players on a server in Minecraft?

Ok, so me and my friend own a server, it uses Minecraft 1.6.4. What I can't seem to figure out, is how to welcome new users to the server by saying Welcome USER To Northwood, when they join.
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956 views

Minute Long Redstone Delay

Currently I have something like this set up: B-R-R-R-C-R-R-R-C-R-R-R-C (etc...) B stands for a redstone block, R stands for a repeater, and C stands for a command block. I have a line like this ...
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How can I control a tower of redstone lamps?

So I think this is slightly related to this question but I'm not sure I fully understand the rules controlling lighting redstone lamps. Say I have a tower like this: Right now, I can light it up ...
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How do I prevent a second player from entering an area occupied by another player? [duplicate]

I am building a gambling machine that uses command blocks to take money from, and give money to a player. It also sends game messages to the player via the command blocks. Therefore, I want only one ...
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655 views

Command Block always activates Comparator

I am trying to do something with command blocks. I have it test for a player at a certain position. I have set up a hopper clock that activates a command block with /testfor @a[x=-611,y=80,z=714] ...
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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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Inverting pressure plate without powering piston

I'm working on a trap, where if a person steps on a pressure plate, then the pistons deactivate and a pit forms in front of the plate. I decided to do this like a vertical jeb's door (a piston door in ...
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3k views

Is there a way to keep a clock ticking with no players logged into SMP?

I'm planning to build a clock tower for my SMP server; however, it's occurred to me that my plans have a gaping flaw: when nobody's online, the redstone clock won't keep time. I'm using vanilla, so ...
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How to test if someone died twice and then put them in creative with invisiblite x in command blocks

I am doing a minigame map, and there are a couple events I want to set-up: If someone dies twice they will be eliminated and put into creative with invisibility X If all of a persons wool is ...
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1k views

How do I make a Redstone Door that opens with a lever?

I am making a castle in my minecraft world but I want a door that villagers can't enter. So, I decided to make a redstone door but everything I looked up on google seemed to complicated. please ...
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What are some good novice applications for redstone circuitry? [closed]

I've just decided to finally bite the bullet and learn redstone circuitry in minecraft. I'm already familiar with logical circuitry, and the minecraftwiki page about redstone circuits is certainly a ...
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How do I get two pistons (one of them on an inverted signal) to go at the same time?

Here's the problem - I need two pistons to go at the exact same time, so that one of them is contracted and the other is expanded, on a switch mechanism. To achieve this, one of the pistons has to ...
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241 views

What is the purpose of a D Flip-Flop in Minecraft?

Based on the design of the circuit and on the description, what is its purpose? It says that it transfers the state of D to Q. This means it can store one bit. But what is the purpose of a D ...
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Minecraft red stone logic Circuit not working correctly?

this is the logic circuit i want to create in minecraft can anyone make one for me because the one i am making is having lots of problem and is too messy. Redstone signals get jammed and they stay ...
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510 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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How to destroy a chest using redstone in minecraft?

I am acquiring emeralds. I am having the issue that if I destroy 4 double chests of paper at my location with a pickax, I can't run through it all (i.e. exchange the paper for emeralds) in time ...
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1answer
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Is there a way to place a command block with a command in a chest and/or dispenser?

I'm in the new snapshot and trying to make a random TP out of a dispenser and command blocks just like SethBling in his snapshot video just with the difference that I want to place the dispenser with ...
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2k views

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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How can I change the outputs from two different wires to the same state (on/off) using one input, regardless of the previous states of the two wires?

So, I've set up two traps near my base, hooked up to pressure plates.Inside each trap, I have some sticky pistons with blocks attached, such that when extended (turned on) no power reaches the various ...
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1answer
797 views

In Minecraft, what is the most space-efficient way to construct AND and OR Redstone gates?

With Redstone you can create wiring and circuitry. Using this, it is possible to create complex devices and even "programs". Unfortunately, the size of such projects usually tends to be massive in ...
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1answer
730 views

How to test for time of day with command block in Minecraft

I'm trying to setup something similar to the MindCrack team's current server set up for my single player world so that the world border expands slowly as I play the game. I already know how to work ...
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1answer
100 views

Can I shrink this three-pulse-generating circuit?

I guess what I'm after here is a code review for my redstone. I've set up a circuit so that when I press a button, 3 items get dispensed from a dispenser, but it seems rather large. Can anyone ...
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1answer
197 views

Easy redstone memory

I want to make a simple one-bit storage to check if someone else entered my house. For the person detector, I use the magic plate from thaumcraft. But how can I build a circuit memory which changes ...
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2answers
80 views

How can I null the output of this circuit when a switch is activated?

Specifically, how would I cancel the redstone signal going to the stone block? What type of logic gate would I need? I want to be able to active a switch on the right input (in the screenshot) that ...
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2answers
1k views

How many ticks must I use to get only one item through a hopper?

If I have a powered hopper with items in it, and I want to let one item through, how long do I have to un-power the hopper? 1 or 2 ticks? All I know is that a hopper transfers items at the rate of 2.5 ...
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550 views

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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303 views

What is the actual function of the third torch in the comparator?

I have heard different explanations for what the function of the third torch is in the comparator. But I have never gotten a definite answer for what the use is being able to right click on the ...
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1answer
106 views

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

My question is a bit familiar to How can I randomly power one of several wires in Minecraft?, but slightly different. Let's say I have 5 wires (or more), wire A, B, C, D and E. Now, I want to ...
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3answers
100 views

Is there a logic gate for this?

I have a set of lights that turn on based on time of day. I want to be able to turn on a separate switch and have the lights blink on and off with a clock I've already built. So basically, is there a ...