Observer Recipe
How to Craft Observer
Observers detect changes in the block they face and emit a redstone pulse when a change occurs.
Step-by-step Instructions
- Open a Crafting Table to access the 3×3 grid.
- Place ingredients exactly as shown in the grid (shape matters unless marked shapeless) then move the resulting Observer to your inventory.
- Use, place, or craft further with your new item.
Ingredients Needed
- 6x Cobblestone
- 2x Redstone
- 1x Quartz
Ingredient Tips
Cobblestone: Mine stone with any pickaxe; smelt to stone if needed for other recipes.
Redstone: Mine redstone ore deep underground; useful for automation.
Quartz: Gather Quartz via its typical source (looting, mining, farming, or trading).
Technical Stats
- Stack Size: 64
- Renewable: Yes
Variants & Interactions
Key Interactions:
- Faces have input/output sides; detects updates like crop growth, block placement, fluid changes
Uses for Observer
- Detecting block updates
- Creating compact redstone circuits
- Building automatic farms
- Powering flying machines
Additional Uses
- Auto-harvest farms
- Pulse generators
- Block update detectors
Fun Fact
Observers were originally added in Minecraft Pocket Edition before being brought to the Java Edition, one of the few features to make this transition.
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FAQ
Why is my observer not firing?
Observers detect block state changes, not all visual changes. Ensure the observing face points at the block you expect to update and that a real block update occurs (e.g. crop growth, block place, fluid flow).
Which side is the output?
The face with the small red dot (opposite the observing face) emits the redstone pulse.
How long is the pulse?
Observers output a 2‑game‑tick (1 redstone tick) pulse—use a monostable or repeater chain to extend it.