Observer

From Minecraft Wiki
Observer
First Appearance JE 1.11 (Snapshot 16w39a)
PE: 0.15.0
Type of Block Redstone
Stackable Yes 64
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The Observer was a block exclusive to Minecraft: Pocket Edition, and was added as part of the 0.15.0 update, but it is currently available in Minecraft: Java Edition as of snapshot 16w39a and Minecraft: Bedrock Edition as of the beta 1.2.0.2 update. It is a redstone-compatible block.

Appearance[edit | edit source]

The observer has a small red dot on the back. The sides are similar to a dispenser, but with a gray "belt" on them. The front is decorated with a stone face.

Mechanics[edit | edit source]

The observer has two sides: a detector side and an output side. The output side will create a one-Redstone-tick (two in-game ticks, or 0.1 seconds) if the block at the detector side is updated or changed. For a more elaborate demonstration, click here.

Uses[edit | edit source]

The observer can detect different stages of flowing water (the depth and position), the stages of growing grass or crops, and other observer blocks. Observers can be used to create cool lighting displays, vertical redstone signal transporters and clocks. It does this by detecting the change in the target block's ID or data value. In other words, an observer emits a redstone signal when a nearby block has been updated.

Crafting[edit | edit source]

Observer
Cobblestone Cobblestone Cobblestone
Redstone Redstone Nether Quartz
Cobblestone Cobblestone Cobblestone


Blocks

Natural Air • Stone • Granite • Diorite • Andesite • Bedrock • Clay ( Terracotta) • Cobblestone ( Moss) • Cobweb • Dirt ( Coarse • Rooted) • Gravel • Bone Block • Ice ( Packed • Blue) • Spawner • Sand ( Red) • Sandstone ( Red) • Obsidian • Snow( Powder Snow) • Sponge • Wet Sponge • Stone Bricks ( Cracked • Mossy • Chiseled) • Prismarine ( Dark • Brick) • Sea Lantern • Pumpkin • Bee Nest • Crying Obsidian • Grass Path • Infested Block • Sculk Block • ( Chute • Trap) • Sculk Growth • Deepslate • Dripstone Block • Pointed Dripstone • Calcite • Tuff • Block of Amethyst
Manufactured Bookshelf • Bricks • Wool ( Carpet) • Concrete( Powder) • Conduit • Dried Kelp Block • Fence • Item Frame • Glass ( Pane) • Stained Glass ( Pane) • Glazed Terracotta • Hay Bale • Iron Bars • Jack o' Lantern • Ladder • Painting • Scaffolding • Slab • Smooth Stone • Cut Sandstone • Smooth Quartz • Smooth Red Sandstone • Slime • Snow • Stairs • Walls • Wood Planks • Wood • Beehive • Honey Block • Honeycomb Block • Polished Diorite • Polished Granite • Polished Andesite • Red Nether Brick • Quartz Bricks • Polished Blackstone • Candle • Tinted Glass • Glow Item Frame • Clay Pot • Painted Clay Pot
Ore Coal Ore • Copper Ore • Diamond Ore • Emerald Ore • Gold Ore ( Nether) • Iron Ore • Lapis Lazuli Ore • Redstone Ore • Nether Quartz Ore • Ancient Debris
Mineral Blocks Block of Copper • Block of Diamond • Block of Emerald • Block of Gold • Block of Iron • Lapis Lazuli Block • Block of Quartz • Block of Redstone • Block of Coal • Block of Netherite • Block of Amethyst
Utility Bed • Brewing Stand • Cake • Cauldron • Chest ( Ender) • Shulker Box • Crafting Table • Enchantment Table • Furnace • Jukebox • TNT • Anvil • Blast Furnace • Barrel • Bell • Campfire • Cartography Table • Composter • Fletching Table • Grindstone • Lantern • Lectern • Loom • Smithing Table • Smoker • Stonecutter • Target • Respawn Anchor • Lodestone • Lightning Rod
Redstone/Travel Button • Dispenser • Redstone Lamp • Door • Fence Gate • Lever • Note Block • Piston ( Sticky) • Pressure Plate • Rail ( Powered • Detector • Activator) • Redstone ( Wire • Redstone Torch • Repeater • Comparator) • Trapdoor ( Iron Trapdoor) • Trapped Chest • Hopper • Dropper • Daylight Detector • Tripwire Hook • Observer • Redstone Ore • Block of Redstone • Sculk Sensor
Plants Cactus • Dead Bush • Chorus Plant • Chorus Flower • Flowers • Wither Rose • Grass( Grass • Fern) • Leaves • Lily Pad • Melon • Mushrooms( Huge)  • Mycelium • Podzol • Nylium • Pumpkin • Saplings • Sugar Cane • Vines • Cocoa Pods • Wheat • Log •
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Corals • Kelp • Sweet Berry Bush • Nether Roots • Fungus • Weeping Vines • Twisting Vines • Sea Pickle • Big Dripleaf • Small Dripleaf • Moss Block • Moss Carpet • Azalea • Hanging Roots • Cave Vines • Spore Blossom • Glow Lichen
Liquids Lava • Water
Non-Solid Fire ( Soul Fire) • Sign • Torch ( Soul Torch) • Banner • Amethyst Cluster • Amethyst Buds
The Nether Glowstone • Shroomlight • Netherrack • Nylium • Nether Brick ( Cracked • Chiseled • Fence) • Nether Quartz • Nether Gold • Ancient Debris • Nether Wart • Nether Roots • Weeping Vines • Twisting Vines • Fungus • Soul Sand • Soul Soil • Basalt • Magma Block • Blackstone
The End Dragon Egg • End Stone • Purpur( Pillar) • Endstone Brick • End Rod • Dragon Head • Chorus Plant • Chorus Flower • Ender Crystal
Creative only Barrier • Structure Block • Structure Void • Jigsaw • Budding Amethyst • Farmland • Spawner • Command Block ( Repeating • Chain)
Bedrock Edition only Stonecutter (old) • Nether Reactor • Glowing Obsidian • Light Block • Border • Allow • Deny
Technical Piston Arm • Block 36 • Burning Furnace • Glowing Redstone Ore • Off-state Redstone Torch • Active Redstone Repeater • Flowing Water • Flowing Lava • Pumpkin Stem • Melon Stem • Block 97 • Portal • End Portal Frame • End Portal • End Gateway (block) • Missing Texture Block
Removed Cog • Dirt Slab • Spikes • Shrub • Rose • Locked Chest • Generic Dead Coral Block • Cyan Flower • Camera(BE) • Wax Block • Buttercup Flower
Unimplemented Crying Obsidian (old) • Wax Block
Education Edition only Element Constructor • Material Reducer • Compound Creator • Hardened Glass • Hardened Glass Pane • Underwater TNT • Underwater Torch • Colored Torch • Element Lead
Upcoming Blocks Pointed Dripstone • Dripstone Block • Calcite • Tuff • Block of Amethyst • Budding Amethyst • Amethyst Cluster • Amethyst Buds • Sculk Block • ( Chute • Trap) • Sculk Growth • Sculk Sensor • Deepslate • Big Dripleaf • Small Dripleaf • Moss Block • Moss Carpet • Hanging Roots • Cave Vines • Spore Blossom • Glow Lichen • Rooted • Powder Snow • Lightning Rod • Copper Ore • Block of Copper • Candle • Tinted Glass • Glow Item Frame • Clay Pot • Painted Clay Pot • Azalea
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