Detector Block
The Detector Block "sees" any block, item, character, mob or plant in front of it and emits a redstone signal.
Crafting
Lapis Lazuli Ore | Cobblestone | Lapis Lazuli Ore | File:CraftDetectorblock.png |
Cobblestone | Cobblestone | Cobblestone | |
Stone | Redstone Dust | Stone |
Applications
- Automation
- Any farming of a at least two block high plant/tree
- Since 2.93, grown wheat can be detected too
- Railway stations
- Light activation
- Mobgrinders
- Elevators (due to a minor bug in 2.60 this will not work with moving platforms)
- Intrusion detection
- Traps
Keep in Mind
- The Block's orientation must face the position where you want to detect something.
- The Block will only see things directly in front (1 Block deep) of it.
- The only exception to this rule is for wheat. The Detector will "see" fully grown wheat placed one block in front, one block below.
- To detect weather, the Block must face upwards and must be able to see the sky.
- There are some issues with weather detection:
- The Detector block must be in the same chunk as the Wind Mill in order to properly protect the attached gearbox.
- Walking far-away, loading a save game, etc. might cause the detection to fail due to Minecraft's performance management.
Demonstration Video
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