AND GATE
Outputs ON only when ALL inputs are ON. Built by combining two NOT gates into a NOR configuration on the inverted inputs, or by using redstone torches. Essential for requiring multiple conditions to be true simultaneously.
Truth Table
| Input A | Input B | Output |
|---|---|---|
| 0 (OFF) | 0 (OFF) | 0 (OFF) |
| 0 (OFF) | 1 (ON) | 0 (OFF) |
| 1 (ON) | 0 (OFF) | 0 (OFF) |
| 1 (ON) | 1 (ON) | 1 (ON) |
How to Build
- 1Place two input lines (A and B) leading into separate blocks.
- 2Place a redstone torch on top of each input block (these are NOT gates, inverting A and B).
- 3Run both inverted signals into a single block.
- 4Place a redstone torch on the output side of that block (a NOR of the inverted inputs).
- 5The output torch is ON only when both input torches are OFF (both inputs ON).
Build Variants
- ▸3-torch AND gate (compact, uses 3 torches)
- ▸Repeater-based AND (uses two repeaters into one block with torch)
- ▸Comparator AND (compare mode, output only if both sides have signal)