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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Redstone Circuitry - Resistors?

Is there any way to construct a resistor within a redstone circuit? I was thinking that there might be some properties of cobblestone versus glass, dirt versus obsidian, etc. but I haven't had the ...
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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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3answers
187 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
965 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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4answers
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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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2answers
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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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2answers
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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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62 views

Getting a row of pistons to trigger

I have been trying to get an row of 7 pistons to fire when a block has been pushed in front of the middle one. Every technique I try is not firing them. This is a Cobblestone floor maker. Here is an ...
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1answer
214 views

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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1answer
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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1answer
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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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452 views

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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2answers
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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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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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2answers
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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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498 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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378 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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1answer
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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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2answers
760 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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1answer
501 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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1answer
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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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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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773 views

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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Perfect test for uninterrupted redstone signal of a certain length?

Currently I am looking for a (preferably rather compact circuit) that will test whether a certain signal has been on for X amount of seconds. Just get a Pulse Length Detector, you might say. Only ...
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How can I /fill water?

I have a huge amount of area that i need to fill relative to the player's place. I tried typing /fill ~-80 69 ~-80 ~80 69 ~80 water which basically fills a 160x160 hole 1 block deep relative to the ...
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Using a command to replace wool blocks with command blocks which contain a command

I am trying to replace certain blocks in this case lime wool with a command block that contains a certain command. The following command to replace lime blocks with stone works. /fill ~-15 ~0 ...
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1answer
499 views

Clear item with custom name?

How do you clear 1 item from the inventory that has a custom name? What I'm trying to do is make a torch that when you hold it, it gives you Night Vision effect but after like 400 ticks or so I want ...
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2answers
188 views

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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3answers
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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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465 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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589 views

Scoreboard and testfor issues using commandblocks

My problem is that I'm building on a map in Minecraft, where a player (myself for example) will press a button and his status changes into "The Player is ready for the game to begin". So, press button ...
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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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2answers
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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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2answers
564 views

Trail of particles from a point to TNT

I have a map where I spawn Primed TNT then teleport it to a random Mushroom Cow which is invisible to make 100% random explosion. Now I want to make a particle trail from an orb kind of block in the ...
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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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1answer
138 views

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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1answer
323 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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1answer
3k views

How do I reverse the redstone door so it starts in close position?

I'm trying to make a hidden door in Minecraft. I have pressure plates set up to open the door, but since the door starts in open mode, when I use the pressure plates, it closes and then opens. How do ...
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1answer
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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
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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
39 views

Inclusive redstone repeater

So, I have this: Now, what I want is a repeater that would work while keeping the unlit lamp on. Yeah, that one right there: I have this already: ...but the piston turns on and off ...
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729 views

How do I use the /kill command to ONLY kill mobs?

I have a Redstone Power loop that connects to a Command Block that is set to kill all entities except for myself (/kill @e[type=!Player]), because I'm building a creative map, but don't want slimes ...
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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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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
46 views

Player in the air testfor

i would like to know how to testfor a player that is on the ground. Some people have tried but not succeeded in this usefull command. This could be usefull for double jumps or no fall damage. If this ...
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191 views