Redstone is Minecraft’s version of electricity. This guide explains how the signal travels and why it dies after fifteen blocks, what repeaters, comparators, pistons and observers do, and how to build your first three simple circuits step by step. Item names follow the official English names in Java 26.3, and the principles also apply to Bedrock 26.52 (Wilderness Bound drop, September 2026).
How redstone works
Every circuit has three parts. At the start sits a power source such as a lever, a button or a pressure plate. At the end is the device that does something: a piston, a door or a lamp. In between, Redstone Dust carries the signal. Once you place it on the ground, it becomes Redstone Wire. Mojang explains the idea in its redstone guide too.
Redstone Dust comes from Redstone Ore, which you find deep underground and can only mine with an Iron Pickaxe or better. If you just want to experiment, skip the mining and use a creative world: switch with /gamemode creative or hand yourself dust with /give. The exact syntax is in our Minecraft commands list.
Signal strength: why a line stops after 15 blocks
A redstone signal has a strength from 0 to 15. It leaves the source at full power and loses one level for every block of wire. After fifteen blocks it reaches zero and will not power anything. To carry it further, put a Redstone Repeater in the line. The repeater boosts the signal back to 15, so the wire can run another fifteen blocks.
Repeaters have two more traits that catch beginners out. They only pass the signal in one direction, so the way you place them matters. They also delay it: click the repeater to set a delay of 1 to 4 redstone ticks, which is 0.1 to 0.4 seconds. On top of that, a repeater can be locked from the side by another signal.
Redstone components
The table uses the official English names from Java 26.3, the ones you will see in tutorials and videos.
| Component | Role | What it does |
|---|---|---|
| Redstone Dust | wire | carries the signal, loses 1 strength per block |
| Lever | source | switches a circuit on and off |
| Stone Button | source | sends a signal when pressed |
| Stone Pressure Plate | source | sends a signal when you step on it |
| Redstone Torch | source and gate | gives power and can invert a signal (on ↔ off) |
| Block of Redstone | source | a power source in the form of a full block |
| Redstone Repeater | signal tool | restores strength 15, one direction only, 1–4 tick delay |
| Redstone Comparator | signal tool | compares or subtracts two signals, measures how full a chest is |
| Piston | device | pushes up to 12 blocks |
| Sticky Piston | device | pushes a block and pulls it back |
| Observer | sensor | sends a short pulse when the block in front of it changes |
| Redstone Lamp | device | lights up when powered |
The redstone family also includes the Daylight Detector, Target, Dispenser, Dropper, Hopper, Note Block and Crafter. You will not need any of them for your first circuits.
The comparator and its two modes
A Redstone Comparator works with two signals. Click it to switch modes: when the front torch is lit, it subtracts the signals, otherwise it compares them. You will most often see one behind a chest or another container. There it measures how full the container is, and you can use that reading in your circuit.
Pistons and sticky pistons
A Piston pushes up to 12 blocks at once. A Sticky Piston is crafted from a regular piston and a Slimeball, and unlike the regular one it pulls the block back when it switches off. Neither can move Obsidian or Bedrock.
Getting the parts
A few basic Java 26.3 recipes so you know what to prepare:
- Redstone Torch: Redstone Dust above a Stick.
- Lever: a Stick above Cobblestone.
- Redstone Repeater: torch, dust, torch in a row above three Stone.
- Redstone Lamp: Glowstone surrounded by four Redstone Dust.
The rest, including the piston and observer, are in our guide to Minecraft crafting recipes. Need Glowstone for lamps? The cleric sells it, one of the villager professions worth knowing.
Your first three circuits
1. An iron door on a lever
You cannot open an Iron Door by hand, only with redstone. That makes it the perfect first circuit.
- Place an Iron Door.
- Put a Lever on the block right next to it.
- Flip the lever. The door opens, flip it again and it closes.
- Instead of a lever you can use a Stone Button or a pressure plate in front of the door.
2. A lamp on a pressure plate
- Place a Stone Pressure Plate, for example at your front door.
- Run Redstone Dust along the ground from the plate to a Redstone Lamp. The line can be at most 15 blocks long.
- If it is longer, add a Redstone Repeater with the arrow pointing towards the lamp.
- Step on the plate. The lamp lights up.
3. Inverting a signal with a torch (NOT gate)
The Redstone Torch is the simplest NOT gate: whatever comes in as on goes out as off, and the other way round.
- Place a solid block and attach a Redstone Torch to its side.
- Run dust from the torch to a Redstone Lamp. The lamp is lit because the torch provides power.
- Put a Lever on the other side of the block and switch it on.
- The block gets powered, the torch goes out and so does the lamp.
Gates, clocks and what comes next
More complex circuits are built from the same parts. An AND gate only lets the signal through when both inputs are on, for example two levers at once. A clock sends a pulse over and over again. Simple ones use repeaters or two observers facing each other. For ready-made designs, see the Redstone circuits page on minecraft.wiki.
Redstone is also used in automatic farms. A classic example is a water harvest that you trigger with a lever. Redstone works on the same principles in Java and Bedrock, but circuit details differ between the editions, so if a design from a video does not work, check which edition it was built for first. You do not need any Minecraft mods for redstone, it is all in the base game.
Join our Discord to ask why a circuit is not working or to show off your own machine: GamersTogether Discord.
FAQ
Up to 15 blocks. The signal has a strength of 0 to 15 and loses one level per block of wire. To go further, add a Redstone Repeater, which restores it to 15.
A repeater restores the signal to full strength, passes it in one direction and delays it by 1 to 4 ticks. A comparator compares or subtracts two signals and can measure how full a chest is.
Pistons cannot move Obsidian or Bedrock at all, and they can push at most 12 blocks in a row. If you want to pull a block back as well, you need a Sticky Piston.
An Iron Pickaxe or better. The ore sits deep underground and drops Redstone Dust.
In principle, yes, the components do the same jobs. Circuit details differ between the editions, so complex builds from Java tutorials may not work in Bedrock.
Information verified on 19 October 2026. More guides are waiting in our Minecraft section.