Technology · Item
Presence sensor
Powered, it gives a full signal while a player or a creature stands in front of it, 1 to 8 m away.
In the game
How to get it
At the grid: a lens on top, 2 iron sheets on each side of a coil, a glowing part at the bottom. Place it, bring it power and a signal cable; set its range and hold time on its sheet.
What it is for
Lights that turn on when you come in, doors that open by themselves, a farm that knows a creature fell in.
Why it exists
Automatic doors and lights are the first magic of electronics.
The same text the game shows in its progress tree and on the item's sheet (I).
How to get it
At the grid: a lens (top middle), 2 iron sheets on each side of a coil, a glowing part (glow jelly, ectoplasm, a lure or spores) bottom middle.
How it works
- Powered, it puts 255 on its signal cable while a player or a creature is in front of it.
- Range 1 to 8 m and a hold time, on its sheet (engraved on it, "4m 2s").
- It looks four times a second, and only when a player is within 96 m.
Ideas
Presence sensor → Electric relay → lamps: light that follows you. Presence sensor → door: an automatic door.
Right-click a block to place it, facing you. Broken, it comes back whole.
On the progress path
EL3Simple electronicsMain path
One of the items of the step Sensors and buttons.
- BeforeEL2 · Circuit board
- This stepEL3 · Sensors and buttons
- NextEL4 · Antenna and dish