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Questions tagged [minecraft-redstone]

Questions about redstone contraptions and machinery in Minecraft. For command block contraptions, use the "minecraft-commands" tag instead. Always use this tag together with the "minecraft-java-edition", "minecraft-bedrock-edition", "minecraft-legacy-console", or "minecraft-education-edition" tag.

Redstone circuits and machines can be used to do Survival-assisting or recreational tasks, from a simple piston door over Rube-Goldberg machines to multiple-kilometer-long quarries that autonomously mine out huge areas of the world.

Please use , or or , depending on which version of the game you are playing when using this tag.

For more information, see the "Redstone mechanisms" article on the Minecraft wiki.

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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 memory)?
Oak
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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 two players logged in, and lately there always…
Ken
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How to channel Redstone current vertically?

I'm making a door with piston sliding sideways that reacts to pressure plates. As the pressure plates are sending the current to redstone at a very low level, I need to raise it somehow, and this leads to awkward stairs of redstone. So I'm…
BlaXpirit
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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 (which won't work for a single input but rather…
Draco18s no longer trusts SE
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How far can redstone current travel?

I know that there is a 15 block limit before a repeater is needed, however I am looking for the TOTAL distance that current can travel. Is it infinite? Can I keep adding repeaters and go on forever? I don't mind whether "old-school" repeaters are…
soulBit
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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 close automatically after. I thought of running…
MadJawa
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Why isn't my sorting system picking up eggs?

I've made an automatic sorting system from this design: ...and it works for everything, except eggs. When I try to place an egg in as the template item, it slips through the system instead of locking in place like in the video. Why is this…
Krishna Bear
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How do redstone torches (circuits) work in Minecraft?

I tried reading the Minecraft Wiki 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 only a few of the answers would be…
BlueRaja - Danny Pflughoeft
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How can I randomise the output of 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 of the 5 will go down the "correct" output of the…
RedstoneDwarf
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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 correctly and strategically?
Keaanu
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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 with pistons; is it possible to deactivate the…
Resorath
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Why are these pistons pushing?

I've lately become hooked into building computers in Minecraft and today I decided to build a giant hard drive. I've built HDDs before, but not at the scale I'm currently attempting, and I anticipated problems. As I was wiring some pistons, they…
user193552
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Without mods, is it possible to filter items in hoppers/droppers/others?

I'm new to Minecraft, and finally out of my "build a log cabin and try not to die" phase. I just completed my second useful machine today, a dropper-vator from level 14, up to the top of a large(ish) tower I'm building. I googled the design, I don't…
John O
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What are some tips for mastering redstone circuits?

Possible Duplicate: How do redstone torches (circuits) work in Minecraft? New to Minecraft, just got beta, mastered most of the mechanics (mining, picks, the Nether, etc.) and now my final project, (besides building some unbelievable thing) is…
Mike
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What's the largest size of "door" I can open with a single switch?

I'm fairly new to using redstone, and I'm wondering what's the largest size of "door" that can be opened with a single switch? I have a huge arena, and I'd ideally like to be able to hit one switch and open a large door to release the monsters. When…
Rachel
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