Detector Block

The Detector Block "sees" any block, item, character, mob or plant in front of it and emits a redstone signal.

Crafting

Cobblestone	Lapis Lazuli Block	Cobblestone	File:CraftDetectorblock.png
Cobblestone	Cobblestone	Cobblestone
Stone	Redstone Dust	Stone

Applications

• Automation
  • Any farming of a at least two block high plant/tree
  • 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 Block must face upwards and must be able to see the sky to detect weather.
• There are some issues with weather detection:
  • The Detector block must be in the same chunk as the Wind Mill.
  • 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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