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Logic circuit

OR gate

Let either control enable an output.

5 × 3 footprint1 layer9 blocksTested in 4 rotationsJava Edition 26.2
Open in the simulatorBuild it in the game

Layout

Layer 0 (on the floor)
lever [face=floor, facing=north, powered=false] at x 0, z 0redstone dust at x 1, z 0redstone dust at x 2, z 0lever [face=floor, facing=north, powered=false] at x 0, z 2redstone dust at x 1, z 2redstone dust at x 2, z 2redstone dust at x 2, z 1redstone dust at x 3, z 1redstone lamp at x 4, z 1
redstone dustinputlamparrows point where a device sends its output; north is up

How it works

Two inputs meet on the same dust: either one lights the lamp.

  1. The two input routes meet at one output route.
  2. Either input can enable the output; both together also enable it.

Truth table

Settled outputs after the inputs stop changing. 1 is on, 0 is off. Every row is checked in the simulator in all four rotations.

ABA or B
000
101
011
111

Inputs and outputs

  • InputA (x 0, y 0, z 0)
  • InputB (x 0, y 0, z 2)
  • OutputA or B (x 4, y 0, z 1)

Blocks you need

6 × redstone dust, 2 × lever, 1 × redstone lamp.

Build it in the game: 9 commands

Relative to where you stand, with x running east and z running south. Paste one line at a time into chat, or into a chain of command blocks. The block art is the game's own; the layout is what the page above shows.

setblock ~0 ~0 ~0 minecraft:lever[face=floor,facing=north,powered=false]
setblock ~1 ~0 ~0 minecraft:redstone_wire
setblock ~2 ~0 ~0 minecraft:redstone_wire
setblock ~0 ~0 ~2 minecraft:lever[face=floor,facing=north,powered=false]
setblock ~1 ~0 ~2 minecraft:redstone_wire
setblock ~2 ~0 ~2 minecraft:redstone_wire
setblock ~2 ~0 ~1 minecraft:redstone_wire
setblock ~3 ~0 ~1 minecraft:redstone_wire
setblock ~4 ~0 ~1 minecraft:redstone_lamp