Daylight Detector

Template:BlockTileEntity

A Daylight Sensor is a block for use with redstone circuitry, planned to be added in the Redstone Update. It emits a redstone signal if it is bright enough (sunlight level) to do so. The strength of the redstone signal varies by the time of day. For example, the sensor will emit redstone for 15 blocks at midday but roughly 5 blocks at evening. The daylight detector emits a redstone current to any/all blocks placed directly (within 1 block) above/below/next to it.

If the Daylight Sensor has a block above it, then it will emit a weaker, or no signal, as it is directly proportional to the sky light, which can be useful for controlling light levels with redstone lamps and pistons to cover and uncover the sensor. Using a NOT gate (also known as an inverted Redstone signal) can reverse the sensor's signal, creating a "night sensor." This can, for example, allow redstone lamps to come on at night and off during daytime.

Crafting

Ingredients	Input » Output
Glass + Nether Quartz + Wooden Slabs	Template:Grid/Crafting Table

Uses

As a nighttime detector

By connecting the sensor to a NOT Gate(inverter), it will output a signal when the light level is LESS than 4, so you can for example make lights that turn on at night.

As Decoration

Because energy is not something currently measured in minecraft, you can use the sensor for decoration.

As a clock

Because you can measure exactly what light level it is, you can make a clock. For example, for every light level it is, 1 light goes on a board. When it is night, the word "Night" is illuminated. This can be useful for servers, especially if you do not have the ability to create one using piston memory.

As a signal

The daylight sensor can easily be used to signal things at different times of day. With command blocks in the game, it can do many more things, like broadcast messages or change everyone's gamemodes (For whatever reason). Below are different methods for it.

Mining signal

If you are mining and you want to come up at a time of day, you can connect the day light sensor and make it either send a redstone pulse down your mine or broadcast a command block message.

Command block command for message:

/say <message>

NOTE: On servers this will broadcast a message to the entire server. So use this command:

/tell <your name> <message>

As a server signal

Message

You can send out a message to the entire server at a certain point of day. The command block command for this is:

/say <message>

OR

/tell <player> <message>

First broadcasts a message to the server, second one tells a message to a player.

Using for competitions

If you carefully time the different light levels (or use the table) you can set a competition of perhaps who can get the closest to the daylight sensor before the light level reaches 15.

Simply connect the daylight sensor 15 blocks away from a command block (And put a repeater to the side going to a second command block, see below) Then enter this to the first command block:

/say @p has won and is closest to the sensor before light level 15!

You can then give a prize to the winner by entering this into the second one (in this example, the prize is three stone):

/give @p 1 3

Output

These tables link output values to the time they occur as well as co-occurring light levels. Note that while the sensor responds to changes in light level, the light level only modulates a separate scale that more or less follows sunlight. This modulation does make the tables invalid if the sensor doesn't have a direct view of the sky.

Clear skies

Signal strength	Time level reached	Time level dissipates	Light levels
0	N/A	N/A	4–5
1	22340	13680	4–7
2	22800	13220	7–9
3	23080	12940	9–11
4	23300	12720	11–12
5	23540	12480	12–13
6	23780	12240	13–14
7	23960	12040	15
8	180	11840	15
9	540	11480	15
10	940	11080	15
11	1380	10640	15
12	1880	10140	15
13	2460	9560	15
14	3180	8840	15
15	4300	7720	15

Rain

Signal strength	Time level reached	Time level dissipates	Light levels
0	N/A	N/A	4–5
1	22340	13680	4–7
2	22800	13220	6–8
3	23240	12780	8–10
4	23520	12500	9–11
5	23760	12260	10–12
6	0	12020	11–12
7	400	11620	12
8	900	11120	12
9	1440	10580	12
10	2080	9940	12
11	2880	9140	12
12	4120	7900	12

Thunderstorm

Signal strength	Time level reached	Time level dissipates	Light levels
0	N/A	N/A	4–5
1	22340	13680	4–6
2	22960	13060	6–8
3	23360	12660	7–8
4	23700	12300	8–10
5	60	11940	10
6	460	11560	10
7	1040	10980	10
8	1740	10280	10
9	2620	9400	10
10	3960	8060	10

Night

Due to a bug, a covered sensor currently emits a signal at night. The following table corresponds to a sensor that cannot receive any daylight. Weather is irrelevant at night.

Signal strength	Time level reached	Time level dissipates
1	14360	21660
2	14740	21280
3	15120	20900
4	15500	20520
5	15900	20120
6	16320	19700
7	16760	19260
8	17240	18780
9	17780	18240

History

u
[[[Redstone Update||24 November, 2012]]]
					Jeb stated that there may be a daylight detector.
2 January, 2013					Jeb tweeted an image of the daylight detector.
13w01aTropical fish also have assigned names that can be seen after capture. In Java Edition, the smaller text under the item name is displayed showing the fish name, similar to the text that displays enchantments under enchanted items. In Bedrock Edition, the item name is displayed showing "Bucket of <fish name>". Their colors are mostly named according to the colored block names, though with a few exceptions: White Silver Gray Black Brown Red Orange Yellow Lime Green Teal Sky Blue Plum Magenta Rose The base color comes first, and if the pattern color is different, it comes after that. Lastly, the fish bucket is given a name according to the shape and pattern of the fish: Flopper Glitter Betty Stripey Blockfish Clayfish Kob Snooper Brinely SunStreak Dasher Spotty Some tropical fish don't follow the normal naming system, and instead, reference real-life fish species. Apart from these names, these types of fish aren't different from regular tropical fish in terms of design or behavior. These varieties are: Name Type Anemone Orange-Gray Stripey Black Tang Gray Flopper Blue Dory ‌ Gray-Sky SunStreak Blue Tang ‌ Gray-Blue Flopper Butterfly Fish ‌/Butterflyfish ‌ White-Gray Clayfish Cichlid Blue-Gray SunStreak Clownfish Orange-White Kob Cotton Candy Betta Rose-Sky Spotty Dottyback Plum-Yellow Blockfish Emperor Red Snapper White-Red Clayfish Goatfish White-Yellow Spotty Moorish Idol White-Gray Glitter Ornate Butterfly ‌/Ornate Butterflyfish ‌ White-Orange Clayfish Parrotfish Teal-Rose Dasher Queen Angel Fish ‌/Queen Angelfish ‌ Lime-Sky Brinely Red Cichlid Red-White Betty Red Lipped Blenny Gray-Red Snooper Red Snapper Red-White Blockfish Threadfin White-Yellow Flopper Tomato Clown ‌ Red-White SunStreak Tomato Clownfish ‌ Red-White Kob Triggerfish Gray-White SunStreak Yellowtail Parrot ‌/Yellowtail Parrotfish ‌ Teal-Yellow Dasher Yellow Tang Yellow Flopper					Daylight detectors were added to the game.

Bugs

• Covering a sensor completely will cause it to glitch and turn on at night. (as well as day)

Trivia

• Daylight Sensors only work by sunlight and cannot be activated by other light sources such as luminescent blocks or torches.
• Daylight Sensors are less than a slab tall, which is like redstone repeaters, redstone comparators and trapdoors.
• A daylight sensor connected to a powered dispenser via redstone wire will cause the dispenser to fire every time the light level changes.
• Rain will affect the sensor.
• Daylight Sensors, as well as most redstone technology, appear more similar to modern technology compared to most other blocks.
• Daylight Sensors can be used as fuel in furnaces.

Gallery

• Daylightsensorscomparison.png

  A comparison of sensor outputs, depending on conditions.

• Automatic Lighting.png

  An example of using the daylight sensor to provide lighting at night.

• 13w01a mojang release.png

  The 13w01a Snapshot image.

• Sensordec.png

  A picture of how the sensor can be used as decoration.

• DaylightMeterFront.png

  Using a sensor and an analog-to-digital converter to make a meter.

• DaylightMeterBack.png

  The sensor and analog-to-digital converter making the meter.

Redstone 

View at: Template:Redstone/content [edit]