Observer

An observer is a block that emits a quick redstone pulse from its back when the block or fluid directly in front of its "face" experiences a change.

Obtaining[]

Breaking[]

An observer requires a pickaxe to be mined. When mined without a pickaxe, it drops nothing.

Block	Observer
Hardness	3
Tool
Breaking time[A]
Default	15
Wooden	2.25
Stone	1.15
Iron	0.75
Diamond	0.6
Netherite	0.5
Golden	0.4

Crafting[]

Ingredients	Crafting recipe
Cobblestone + Redstone Dust + Nether Quartz

Usage[]

An observer is placed similarly to a piston. It observes the block that it is placed against. The texture of the detecting side is that of an observing face. As observers can detect the state of other observers, placing two adjacent observers, each watching the other, can make a fast and compact redstone clock. They send out a pulse.

Behavior[]

In Java Edition, an observer detects changes in its target's block states, or the breaking or placing of a block (i.e. changes in its block state, but not its block entity data). This means that changes like the age of crops can be detected because they are part of the block states.

In Bedrock Edition, an observer acts as a block update detector and detects anything that causes a block update.

The causes and propagation of block updates are different between Java Edition and Bedrock Edition. As a result, each can detect some kinds of changes that the other cannot. See the table below for a comparison.

When it detects something, the observer emits a redstone pulse of strong power at level 15 for 2 game ticks (1 redstone tick). The pulse can power redstone dust, a redstone comparator, a redstone repeater, or any mechanism component located at its opposite end.

In Java Edition, the pulse is emitted with a delay of 1 redstone tick. In Bedrock Edition, it is supposed to be delayed by 1 tick as well but is actually delayed 2 redstone ticks due to MCPE-15793, a bug causing redstone delays to be incorrect when components are activated by world changes (which, in the case of the observer in Bedrock Edition, is the only way it can be activated), as opposed to pure redstone components ticking. Its timing can also be incorrect due to MCPE-73342.

It also counts as a block update when the observer itself is moved by a piston. When this happens, an observer emits a pulse after being pushed or pulled, but not beforehand. This enables them to be used in flying machines.

Observers behave as both opaque and transparent blocks: they block light and allow mob spawning on top, but do not block opening chests below, do not cut off redstone wire, and cannot conduct redstone power.

Because observers in Java Edition detect changes in the block state, and not block updates, they can detect a wider range of phenomena than a block update detector (BUD) circuit in Bedrock Edition can detect (as some block state changes don't cause block updates). Observers in Bedrock Edition do detect block updates but not block state changes, and so they detect the exact same things that any other BUD would detect in that edition.

Limitations[]

Change in block state	Detected in
	Bedrock Edition	Java Edition
A block or a fluid being placed or broken in any way; either directly by player, enderman, or ravager or through: Placing/breaking two-block-tall/wide blocks Snow golem or snowfall creating snow Snow melting Dispenser placing carved pumpkin, wither skull, or shulker box Creating/removing fluid using player or dispenser Placing scaffolding on top/side of another scaffolding Entities that is on fire touching powder snow, causing it to melt Block being broken by fluid, (sticky) piston, explosion, opacity,[1] Inconsonant light level[2][3] Flammable blocks getting burned up by fire or lava A falling block turn into a falling block entity and vice versa Cactus breaking by placing a solid block next to it Villager planting and destroying crops Zombie breaking doors Leaves decaying Chorus plant break due to their invaild placement[4] Using up a damaged anvil, causing the damaged anvil to break Eating all the cake Water touching a sponge, causing the area near the sponge to be removed and create a block update to the water Place the block into the replaceable block, replace a block by left-click and right-click at the same time; A wither rose block being planted after wither kills a mob if the ground is grass block, dirt, coarse dirt, moss block, mud, soul sand, soul soil‌[JE only] or netherrack Left-clicking the dragon egg, causing it to teleport and create a block update at the starting teleporting point and the teleporting destination of the dragon egg Boat and boat with chest breaking a lily pad Turtle laying turtle egg(s), trampling an eggs=1 turtle egg or turtle egg(s) hatching into baby turtle(s) Damaging a silverfish, causing a nearby infested block turn into silverfish and create a block update Frog laying frogspawn or frogspawn hatch into tadpole Thrown trident breaks pointed dripstone Sniffer egg hatch into snifflet The upper part of pitcher crop spawn when apply bone meal on the pitcher crop that have block state age is 2	Yes	Yes
Water being inserted to or removed from a block that can be waterlogged.	Yes	Yes
A water (or lava, if lavaSourceConversion is set to true‌[JE only]) source block being created by having 2 water source blocks unite to each other.	Yes	Yes
Fire being ignited or extinguished in any way; either directly by player or through: A dispenser Fire spreading to flammable blocks next to lava or fire Fireball from a dispenser, a ghast or a blaze Lightning A bed or a respawn anchor exploding Place an end crystal on bedrock or obsidian in the End Being extinguished by fluid, splash water bottle, lingering water bottle or naturally	Yes	Yes
A fire is turn into a soul fire (but not vice versa).	Yes	Yes
Fluid or powder snow being placed in or removed from a cauldron or the level of the water/lava/powder snow cauldron changing in any way, for example using bucket (empty, water, lava, powder snow), bottle, water bottle, rain, snowfall, pointed dripstone, burning entity on water/powder snow cauldron.	Yes	Yes
Block being replace by /setblock, /fill or /clone commands.	Yes	Yes
Change block state of block using debug stick.‌[Java Edition only]	N/A	No
A nether portal being created.	Yes	No[5]
A nether portal being destroyed.	No[6]	Yes
An end portal being created.	No	No
An end portal being destroyed.	No	Yes
The creation of an iron golem, a snow golem or a wither.	Yes	Yes
A (sticky) piston (head) extending or retracting.	Yes	Yes
A block being pushed or pulled by a (sticky) piston; either directly or stuck to slime block or honey block moved by the piston.[7]	Yes	Yes
A monster spawner block activating.	No	No
The mob spawn of a monster spawner being changed using a spawn egg.	No	No
A chest, a trapped chest or an ender chest opening or closing.	No	No
A shulker box opening or closing.	No	Yes
A barrel opening or closing.	Yes	Yes
The inventory of a block that a comparator can measure as a container changing.	No	No
The crack stage of an anvil changing after use.	Yes	Yes
A snow layer being added into snow by player or by snowfall.[8]	Yes	Yes
A beacon activating or deactivating.	Yes	No
A command block producing a success.	No	No
The unconditional/conditional stage of a command block changing.	Yes	Yes
The impulse/chain/repeat stage of a command block changing.	Yes	Yes
A piece of a cake or a cake with candles changing.	Yes	Yes
A hopper being activated or deactivated. (Turning the hopper on/off)	Yes	Yes
Dry farmland changing between its six dry-looking hydration stages.	No	Yes
Farmland changing between dry and humid or vice versa.	Yes	Yes
A dispenser or a dropper activating or deactivating.	Yes	Yes
A dispenser, dropper, piston or sticky piston changing quasi-connectivity state.[9]‌[Java Edition only]	No	Yes
A (deepslate) redstone ore block activating or deactivating.	Yes	Yes
Grass block or mycelium turning to dirt or nylium to netherrack after being spread using bone meal or grass block or mycelium decaying to dirt or nylium into netherrack.	Yes	Yes
Coarse dirt or rooted dirt converting into dirt through the use of a hoe.	Yes	Yes
Grass block, dirt, or dirt path converting into farmland through the use of a hoe.	Yes	Yes
Grass block, podzol, mycelium, dirt, coarse dirt, or rooted dirt converting into dirt path through the use of a shovel.	Yes	Yes
Farmland or dirt path converting into dirt.	Yes	Yes
Concrete powder converting into concrete through contact with water.	Yes	Yes
A sea pickle being added into a sea pickle.	Yes	Yes
A pink petal being added into a pink petal.	Yes	Yes
A turtle egg being added into a turtle egg.	Yes	Yes
A turtle egg being removed from a turtle egg by breaking or trampling.	Yes	Yes
The hatch block state of a turtle egg and a sniffer egg changing.	Yes	Yes
A stone, cobblestone, deepslate or any stone brick variant block being turned into an infested block by silverfish.	Yes	Yes
A double slab being created by adding a slab into another slab.	Yes	Yes
Ice melting into water or water freezing into ice	Yes	Yes
Water freezing into frosted ice through the use of Frost Walker or frosted ice melting into water	Yes	Yes
Turn pumpkin into carved pumpkin using shears.	Yes	Yes
Turn logs/woods/stems/hyphae/block of bamboo into stripped logs/woods/stems/hyphae/block of stripped bamboo using axes.	Yes	Yes
The stage of a sapling or bamboo changing.	Yes	Yes
The age of mangrove propagules, bamboo, wheat, carrots, potatoes, beetroots, melon stem, pumpkin stem, nether wart, cocoa, sweet berry bush, chorus flower, cactus, sugar cane, kelp, weeping vines, twisting vines, cave vines, fire, frosted ice, torchflower crop, or pitcher crop changing.	Yes	Yes
A torchflower crop turning into a torchflower.	Yes	Yes
Fluid flowing into the empty space to or draining from a block.[10]	Yes	Yes
Fluid, light block, or composter level changing.	Yes	Yes
(Flowing) water turning into stone through contact with lava.	Yes	Yes
Flowing lava turning into cobblestone through contact with water.	Yes	Yes
Lava turning into obsidian through contact with water.	Yes	Yes
(Flowing) lava turning into basalt through contact with soul soil and blue ice.	Yes	Yes
Water turning into bubble column or vice versa.	Yes	Yes
Upward bubble column turning into whirlpool bubble column or vice versa.	Yes	Yes
An eye of ender being inserted into an end portal frame.	Yes	Yes
Player or villager sleeping/waking up in a bed.	Yes	Yes
A grass block, a mycelium or a podzol block becoming snowy or not snowy.	Yes	Yes
Text in a sign or a hanging sign being edited.	Yes	No
A dye or glow being applied to a sign or a hanging sign or removed from it.	Yes	No
Waxing a sign or a hanging sign using a honeycomb.	Yes	No
The mode of a structure block or a comparator changing.	Yes	Yes
A grass block, grass‌[BE only] or fern‌[BE only] being grazed by a sheep.	Yes	Yes
A carrot crop being eaten by a rabbit.	N/A[11]	Yes
A button being pressed or returning to inactive state.	Yes	Yes
A pressure plate or the detector rail activating or returning to inactive state.	Yes	Yes
The power of a weighted pressure plate, redstone wire, daylight detector or target changing.	Yes	Yes
A lever being flicked.	Yes	Yes
A redstone lamp or a redstone torch lighting up or turning off.	Yes	Yes
The mode of daylight detector being changed.	Yes	Yes
A TNT igniting.	Yes	Yes
Coral/coral block/coral fan converting into dead coral/coral block/coral fan.	Yes[12]	Yes
A sponge turning into a wet sponge.	Yes	Yes
A wet sponge drying into a sponge in the Nether.[13]	Yes	N/A
A door being opened or closed by a player, a villager, a piglin, a piglin brute, a vindicator‌[JE only], a wandering trader‌[BE only] or redstone.	Yes	Yes
A trapdoor being opened or closed by a player or redstone.	Yes	Yes
A fence gate being opened or closed by a player or redstone.	Yes	Yes
The in_wall block state of a fence gate changing.	Yes	Yes
A furnace, a blast furnace or a smoker lighting up or turning off.	Yes	Yes
The distance of leaves or a scaffolding changing.	Yes	Yes
The bottom block state of a scaffolding changing.	Yes	Yes
A potion being moved in or out of a brewing stand.	Yes	Yes
Book and quill or written book being moved in or out of a lectern.	Yes	Yes
The note of a note block being changed.	No	Yes
A note block being left-clicked in Survival mode.	No	No
The instrument block state of a note block changing.	No	Yes
A music disc being inserted to or removed from a jukebox by player, hopper, or minecart with hopper.	No	Yes
A redstone repeater locking or unlocking.	Yes	Yes
The delay of a redstone repeater being changed.	Yes	Yes
A redstone repeater, a redstone comparator, an observer, a note block, a lectern, a lightning rod, an activator rail, a powered rail, a sculk sensor[n 1], a calibrated sculk sensor[n 1], a tripwire, or a tripwire hook activating or deactivating.	Yes	Yes
A tripwire or a tripwire hook attaching or detaching.	Yes	Yes
The disarmed‌[JE only] or disarmed_bit‌[BE only] block state of a tripwire changing.[14]	N/A	N/A
Sculk shrieker starting shrieking.	No[15]	Yes
Sculk shrieker stopping shrieking.	Yes	Yes
Sculk catalyst blooming or unblooming.	Yes	Yes
A dragon head or a piglin head activating or deactivating.	Yes	No
A conduit activating or deactivating.[16]	N/A	N/A
An item frame being placed or an item being added to, rotated in or removed from an item frame.	Yes	No
Something being teleported by an end gateway.	Yes	No
An item being inserted to or removed from a flower pot.	Yes	Yes
The shape or rotation of walls, fences, iron bars, glass panes, stairs, tripwire, redstone, vines, mushroom blocks, mushroom stem, fire, all type of rails, glow lichen, sculk vein, pointed dripstone, or chorus plant changing.	Yes	Yes
The top block state of the walls changing.	Yes	Yes
A melon/pumpkin creates from a melon stem/pumpkin stem.	Yes	Yes
The stem of a melon or pumpkin attaching or detaching.	Yes[17]	Yes
Kelp/weeping vines/twisting vines/cave vines turning into a kelp/weeping vines/twisting vines/cave vines plant or vice versa.	No	Yes
The berries block state of the cave vines (plant) changing.	No	Yes
A campfire being lit or extinguished.	Yes	Yes
Food being cooked or popping out of a campfire.	Yes	No
A hay bale being placed or removed below a campfire.	No	Yes
Glowstone being added into a respawn anchor.	No	Yes
A respawn anchor being used.	No	Yes
A lodestone being used.	No	No
Oxidation level of unwaxed copper or cut copper block, slab or stairs changing.	Yes	Yes
A copper or cut copper block, slab or stairs being waxed or unwaxed.	Yes	Yes
Grass/fern/seagrass turning into tall grass/large fern/tall seagrass after bone meal is used on it.	Yes	Yes
Cactus, sugar cane, bamboo, bamboo shoot, vines, weeping vines, twisting vines, kelp, cave vines, pointed dripstone or chorus flower growing.	No	Yes
Chorus flower growing or leaving a chorus plant behind and causing a block update to that.	Yes	Yes
An amethyst cluster growing.	Yes	Yes
A bamboo shoot turning into bamboo.	Yes	Yes
The leaves block state of bamboo changing.	Yes	Yes
Mushroom spreading.	No	Yes
1-block-tall flowers spreading after bone meal is used on one.‌[Bedrock Edition only]	No	N/A
Glow lichen spreading after bone meal is used on one.	No	Yes
Moss blocks spreading after bone meal is used on one.	No	Yes
A big dripleaf increasing or decreasing its tilt.	Yes	Yes
A big dripleaf turning into a big dripleaf stem.	Yes	Yes
A big dripleaf growing after bone meal is used on it.	No	Yes
A small dripleaf turning into a big dripleaf after bone meal is used on it.	Yes	Yes
Hanging roots being created underneath rooted dirt after bone meal is used on it.	Yes	Yes
A hanging mangrove propagule being created underneath mangrove leaves after bone meal is used on it.	No	Yes
The number of sea pickle(s) changing after bone meal is used on a coral block.	Yes	Yes
A sea pickle being created after bone meal is used on a coral block.{{only	N/A[18]	Yes
Using bone meal on pink petals that do not already have 4 petals.	Yes	Yes
A sapling or a propagule turning into a tree.	Yes	Yes
A mushroom turning into a huge mushroom after bone meal is used on it.	Yes	Yes
An azalea turning into a azalea tree after bone meal is used on it.	Yes	Yes
A fungi turning into a huge fungi after bone meal is used on it.	Yes	Yes
A grass block turning into dirt when a sapling grows into a tree on that grass block.	Yes	Yes
A grass block/dirt turning into podzol[19] when a 2×2 spruce sapling grows into a tree on that grass block/dirt.	Yes	Yes
A grass block/dirt or any other blocks turning into rooted dirt by when an azalea or a flowering azalea grows on that grass block/dirt.	Yes	Yes
Mud turning into muddy mangrove roots when a mangrove tree grows.	Yes	Yes
A block that has sculk_replaceable tag turning into sculk by sculk catalyst.	Yes	Yes
A sculk vein/Sculk veins being created by sculk catalyst.	Yes	Yes
The shape of sculk vein(s) changing by sculk catalyst.	Yes	Yes
A sculk sensor or a sculk shrieker being created by sculk catalyst.	Yes	Yes
A bell ringing.	Yes	No
A bee leaving a bee nest or a beehive.	Yes	Unknown
A bee entering a bee nest or a beehive (thus increasing the honey level).	No	Yes
The honey being collected from a bee nest or a beehive using shears or a glass bottle.	Yes	Yes
A candle being added into a candle.	Yes	Yes
A candle being added into a cake.	Yes	Yes
A candle or candle cake being lit or extinguished.	Yes	Yes
Dirt/coarse dirt/rooted dirt turning into mud through the use of a water bottle.	Yes	Yes
Mud turning into clay through the use of pointed dripstone.	Yes	Yes
A book being add or remove from a chiseled bookshelf by player, hopper, minecart with hopper, or dropper.	Yes	Yes
A suspicious block becoming less dusted as the player uses a brush, or more dusted if the player stops using a brush.	Yes	Yes
A suspicious block turning into sand or gravel.	Yes	Yes
All other block/block state changes.	Yes	Yes

Note blocks[]

The observer can be placed under note blocks to produce bass drum sounds.

Sounds[]

Java Edition:

Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	Block broken	Blocks	Once the block has broken	block.stone.break	subtitles.block.generic.break	1.0	0.8	16
	Block placed	Blocks	When the block is placed	block.stone.place	subtitles.block.generic.place	1.0	0.8	16
	Block breaking	Blocks	While the block is in the process of being broken	block.stone.hit	subtitles.block.generic.hit	0.25	0.5	16
	None[sound 1]	Entity-Dependent	Falling on the block with fall damage	block.stone.fall	None[sound 1]	0.5	0.75	16
	Footsteps	Entity-Dependent	Walking on the block	block.stone.step	subtitles.block.generic.footsteps	0.15	1.0	16

Bedrock Edition:

Sound	Source	Description	Resource location	Volume	Pitch
	Blocks	Once the block has broken	dig.stone	1.0	1.1-1.2
	Blocks	When the block is placed	use.stone	1.0	1.2-1.25
	Blocks	While the block is in the process of being broken	hit.stone	0.3	0.75
	Players	Falling on the block with fall damage	fall.stone	0.4	1.0
	Players	Walking on the block	step.stone	0.35	1.0
	Players	Jumping from the block	jump.stone	0.12	1.0
	Players	Falling on the block without fall damage	land.stone	0.22	1.0

Data values[]

ID[]

Java Edition:

Name	Identifier	Form	Translation key
Observer	observer	Block & Item	block.minecraft.observer

Bedrock Edition:

Name	Identifier	Numeric ID	Form	Item ID[i 1]	Translation key
Observer	observer	251	Block & Giveable Item[i 2]	Identical[i 3]	tile.observer.name

Block states[]

Java Edition:

Name	Default value	Allowed values	Description
facing	south	down east north south up west	The direction the observer is observing. The same direction the player faces when placing the block.
powered	false	false true	True while the observer is observing a change and emitting a pulse.

Bedrock Edition:

Name	Metadata Bits	Default value	Allowed values	Values for Metadata Bits	Description
facing_direction (Hidden)	0x1 0x2 0x4	0	0 1 2 3 4 5	0 1 2 3 4 5	The direction the observer is observing. 0: Observer facing down 1: Observer facing up 2: Observer facing north 3: Observer facing south 4: Observer facing west 5: Observer facing east
minecraft:facing_direction	Not Supported	down	down east north south up west	Unsupported	The direction the observer is observing.
powered_bit	0x8	false	false true	0 1	True while the observer is observing a change and emitting a pulse.

History[]

Java Edition
November 24, 2012					When announcing the upcoming 1.5 Redstone Update, Jeb mentions that changes to redstone logic may break existing BUD functionality, and therefore that block update detection may need to be implemented into the game in a more permanent, intentional form, rather than as a behavioral quirk.
1.11		16w39a			Added observers.
					Note: the "arrow" texture on the top/bottom of observers is pointing the wrong direction (toward the input, rather than the output).
					Observers act as a block update detector.
					Observers emit pulses that lasted 1 game tick (0.5 redstone ticks) and have a signal strength of 1.
					Observers can power blocks (like a redstone repeater).
					Observers have no delay between detecting a block update and emitting a pulse, meaning that observers are essentially instant.
					Observers are placed with the observing, or input, side facing the player.
		16w41a			Observers now emit 4 game tick (2 redstone ticks) pulses.[20]
					The signal strength of observers has now been changed to 15.[21][22]
					Observers *appear* to no longer strongly power blocks, and now emit only activation power, like a block of redstone (and this may be the intended behavior for this snapshot). However, in reality, they still strongly power blocks, but the blocks adjacent to those blocks aren't given block updates, causing buggy behavior.[23]
					Observers are now placed with the output facing the player.[24][25]
					A bug where observers would redirect redstone dust from all 4 directions has now been fixed.[26] (They are supposed to redirect dust only from their output side.)
		16w42a			The developers have attempted to make observers no longer detect block updates happening to air blocks, in order to make observer behavior more predictable.[27] In the process, they have broken redstone mechanics a bit, so that the block update bug from the previous snapshot now affects redstone repeaters and redstone comparators, too.[28]
		16w43a			The model of observers has now been changed. The rotation of the "arrow" texture has now been fixed so it points in the correct direction.
					General redstone mechanics for observers now work as they did before 16w42a, with the exception of the change named below.
					Observers now output strong power like in 16w39a, except that they, as well as redstone repeaters and redstone comparators, no longer provide block updates to transparent blocks or air.
		16w44a			The observer block update changes relating to redstone from 16w42a and 16w43a have now been fully reverted.
					The behavior of observers has now been overhauled/redefined. Observers have now been changed from a block update detector to a block state change detector.
					Observers have now been changed to detect when the block it was observing changed, its basic block state changed, or the block was placed/destroyed. (Note that it does not detect changes in the extended block state, e.g. changes that are not saved when the world is unloaded, such as the shape of a fence, or whether or not a repeater is locked.) This change has now made observer behavior much more predictable, as unexpected/invisible block updates would no longer trigger observers.[29]
					Observers have now been changed to emit a 2 game tick (1 redstone tick) pulse when activated.[30]
					Observers no longer output power instantly.[31]
		pre1			The front and top texture of observers have now been changed.
					The redstone output side of observers now blinks red when it outputs power.
1.13		17w47a			Prior to The Flattening, this block's numeral ID was 218.
					Due to The Flattening, observers can now detect all block state changes, e.g. the changes in the shape of fences and redstone dust.
		pre4			Observers no longer produce a pulse when placed by hand.
1.14		18w43a			The textures of observers has now been changed.
1.16		20w10a			Observers can now support ladders and tripwire hooks.[32]
		20w14a			Observers now correctly detect when the status of the fence changes.
		Pre-release 3			The back texture of activated observers has been changed.
1.17		21w13a			Observers now correctly detect when a grass block changes to dirt if a tree grows on top.
Pocket Edition Alpha
v0.15.0		May 2, 2016			Jeb tweeted that Daniel Wustenhoff is a working on a BUD block.[33]
					Tommaso Checchi tweeted his "rejected graphics" for the observer block.[34]
		build 1			Added observer blocks.
v0.15.3					Observers are now placed like a piston and not a log.
Bedrock Edition
1.2.0		beta 1.2.0.2			The front and top texture of observers have now been changed.
					Observer blocks can now detect many more block changes.
					The strength of the redstone pulse outputted by observer blocks has now been increased.
					Observers no longer pulse twice when observing a retracting piston.
					Opening and closing the command block screen no longer activates an observer block.
1.10.0		beta 1.10.0.3			The textures of observers has now been changed.
1.16.0		beta 1.15.0.53			Observers no longer emit a pulse when they are first placed.
1.16.100		beta 1.16.100.55			Observers no longer get stuck in an active state when moved by pistons.
1.20.10		beta 1.20.10.23			Now uses the minecraft:facing_direction block state instead of facing_direction.
Legacy Console Edition
TU54	CU44	1.52	Patch 24	1.0.4	Added observers.
		1.90			The textures of observers has now been changed.
New Nintendo 3DS Edition
0.1.0					Added observers.

Issues[]

Issues relating to "Observer" are maintained on the bug tracker. Report issues there.

Trivia[]

• The current observer texture was created because Jeb kept confusing the front with the back. He said it was inspired by the "rejected texture" created by Tommaso Checchi.^[34][35]

Gallery[]

• 

  Development image of an observer from Jeb.

• 

  The first image released of the new observer texture for Java Edition.

See also[]

• Tutorials/Block update detector
• Redstone Comparator

References[]

External Links[]

• Block of the Week: Observer – Minecraft.net on November 10, 2017