recently i decided to create a day night sensor. using a bud (block update detector) and i was watching a few you tube videos when i saw what was being refereed to as an s-bud.. or a silent block update detector. this type of detector uses red stone impulses to detect a block being updated, or more correctly it creates an impulse when the block is updated.
it looks like this.
and when used in an array it looks like this.
essentially all you need is a grass block above with water flowing over it. with this setup i am able to have 5 detectors for both night and day. the night side should only be obstructed by water and a glass or a leaf block.
like this
the two rows of grass beneath the glass are the day detection blocks while the the night detection blocks are to the side basically the design is identical. with the exception being the day sensors are covered up and will only receive enough life to grow during the day and will die off when the water is active.
between the day and night sides you will need a NOR latch, to act as a toggle so multiple block updates do not trip the machine. you will need a set of pistons to control water flow. at night the water should be off so that in the morning more light can reach the day sensors. remember water must be covering each grass block. it doesn't matter if there appears to be more water in some place because of waters flow physics it still filters light by 2 for every 1 block.
that's the basic explanation. hopefully ill be able to record a tutorial to go along with this and the larger more affective 8x8 sensor array.
also. forgot to mention before you can turn the BUD into a motion sensor/ trip wire/ pressure plate by putting a redstone ore block over the top torch instead of grass.
This... would be amazing Works with XBLA version for sure, I'm assuming, right?
Also, explaining the sensor to redstone rookies [like me] would help
yea its xbla built and tested most of the bud sensors which are kind of like latches themselves don't seem to work right on Xbox....
the sensor itself is breathtakingly simple. and what it does is take advantage of, well i hate to call it a glitch but essentially whats happening is the torch. or torches in this case are burning themselves out. then when the block above or directly linked to the "sensor" torch changes state it forces the torch to temporarily change state making it go through the burn out sequence again sending off a few quick pulses. this is why a NOR latch is necessary it keeps the signals from flipping the switch on and off over and over again when the sensors "flicker"/ power cycle it also acts as a t flip-flop.
as far as the construction of the sensor goes its super simple. just make a 2 block step, like seen above, and place a torch on the side of the lower block that is underneath the upper block, and another on the upper block in the same relative position. then place some redstone dust on the tops of the two blocks and your done. then you just need the block you want to register placed above the top block. to test it just place any block above it and it should force a power cycle.
i should note this sensor has its pros and cons. since it only uses a few pistons to control water unlike the inline bud array it doesn't cause much lag if any at all, but on the other hand it is not nearly as sensitive as the inline piston bud array.
it is susceptible to any change in redstone within a certain area. hence why their is a huge gap in the center of the device.
sometimes (1/50 chance) when you build it a torch will hang. or be left lit. or possibly a repeater. you just have to destroy it and place it again. and this doesn't seem to be an inherit problem as it only seems to happen during the first cycle.
its very cost affective and could conceivably be made with one sensor a single piston a water source block and a basic t flip flop, though it would be very slow. specially for a day sensor.
the more redstone attached to each sensor before adding the first repeater the more unstable it seems to be. so directly placing a repeater from the base of the sensor is wise.
however unlike the inline piston bud array it is very quite. and can easily be altered to fit many circumstances and can be placed flush with the ground it lacks the necessity for lighting torches to be place at the ground level area. and the sensors themselves being modular and compact means you could create multiple smaller arrays working in unison to create a much larger more accurate mechanism.
because of the number of BUD detectors, the more detectors the more sensitive and in affect faster, and the space required to filter the light for the day detector side. its actually small compared to light sensor 12x and 7x. and even the single light sensor using a piston BUD. that one is 4x6x6 and only has a single light detector. most of the pc s-buds are much larger than the ones im using too so they have to be slightly larger or use fewer sensors. and also as i stated before it needs a bit of space between the buds so they do not false trip between the day and night sensors..
To piggyback on this question, how would you implement this?
that's a loaded question, there are so many things you can do. you could have it turn lights on when its night. lock a door so people cant enter either at night or day. and lots of other things. and millions of more things i cant imagine.
no ETA on the tutorial i have no recording process at the moment. hoping to find someone to help me out after i get the larger more complicated version done. but what i really want to do is give people the idea without telling them this is how it must be built too many tutorials do that... this is a very customizable mechanism...
to answer your question it definitely has to be where light can hit it. the more open the upper level is the more accurate it will be. you could conceivably place it under ground with a window that is directly above the device. since sunlight doesn't decay unless obstructed by water, glass, half slab. or leaf blocks,or forced to light an offset area. this however would pose a serious problem. light would only hit the sensor when the sun was directly above it this means the time for it to detect sunlight would be very short and likely not long enough to trigger the mechanism.
To reduce the chance of hanging place two pieces of redstone dust on the back block leading out & the top redstone dust & torch isn't needed, unless you want to invert the output.
I original found this out last year, but in the latest version of MCXBLA they will get stuck on an on state (rare but happens)
To reduce the chance of hanging place two pieces of redstone dust on the back block leading out & the top redstone dust & torch isn't needed, unless you want to invert the output.
I used one in this build, but due to the locking on state, I had to go with a duel edge detector.
Really, xbox has trip wires? I thought that was to come.
no you can use bud's like trip wires by using red stone ore as the update block since the block lighting up is an update. and it will light up if anyone walks on it.
Ive completely redone the mechanism and it uses piston buds now. ill post some pics and try to make it a proper tutorial. and show how it can be used for farms. "trip wires". and other things. but like much of minecraft there are a near infinite number of possibilities.
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it looks like this.
and when used in an array it looks like this.
essentially all you need is a grass block above with water flowing over it. with this setup i am able to have 5 detectors for both night and day. the night side should only be obstructed by water and a glass or a leaf block.
like this
the two rows of grass beneath the glass are the day detection blocks while the the night detection blocks are to the side basically the design is identical. with the exception being the day sensors are covered up and will only receive enough life to grow during the day and will die off when the water is active.
between the day and night sides you will need a NOR latch, to act as a toggle so multiple block updates do not trip the machine. you will need a set of pistons to control water flow. at night the water should be off so that in the morning more light can reach the day sensors. remember water must be covering each grass block. it doesn't matter if there appears to be more water in some place because of waters flow physics it still filters light by 2 for every 1 block.
that's the basic explanation. hopefully ill be able to record a tutorial to go along with this and the larger more affective 8x8 sensor array.
Also, explaining the sensor to redstone rookies [like me] would help
I need ta write something better...
yea its xbla built and tested most of the bud sensors which are kind of like latches themselves don't seem to work right on Xbox....
the sensor itself is breathtakingly simple. and what it does is take advantage of, well i hate to call it a glitch but essentially whats happening is the torch. or torches in this case are burning themselves out. then when the block above or directly linked to the "sensor" torch changes state it forces the torch to temporarily change state making it go through the burn out sequence again sending off a few quick pulses. this is why a NOR latch is necessary it keeps the signals from flipping the switch on and off over and over again when the sensors "flicker"/ power cycle it also acts as a t flip-flop.
as far as the construction of the sensor goes its super simple. just make a 2 block step, like seen above, and place a torch on the side of the lower block that is underneath the upper block, and another on the upper block in the same relative position. then place some redstone dust on the tops of the two blocks and your done. then you just need the block you want to register placed above the top block. to test it just place any block above it and it should force a power cycle.
i should note this sensor has its pros and cons. since it only uses a few pistons to control water unlike the inline bud array it doesn't cause much lag if any at all, but on the other hand it is not nearly as sensitive as the inline piston bud array.
it is susceptible to any change in redstone within a certain area. hence why their is a huge gap in the center of the device.
sometimes (1/50 chance) when you build it a torch will hang. or be left lit. or possibly a repeater. you just have to destroy it and place it again. and this doesn't seem to be an inherit problem as it only seems to happen during the first cycle.
its very cost affective and could conceivably be made with one sensor a single piston a water source block and a basic t flip flop, though it would be very slow. specially for a day sensor.
the more redstone attached to each sensor before adding the first repeater the more unstable it seems to be. so directly placing a repeater from the base of the sensor is wise.
however unlike the inline piston bud array it is very quite. and can easily be altered to fit many circumstances and can be placed flush with the ground it lacks the necessity for lighting torches to be place at the ground level area. and the sensors themselves being modular and compact means you could create multiple smaller arrays working in unison to create a much larger more accurate mechanism.
because of the number of BUD detectors, the more detectors the more sensitive and in affect faster, and the space required to filter the light for the day detector side. its actually small compared to light sensor 12x and 7x. and even the single light sensor using a piston BUD. that one is 4x6x6 and only has a single light detector. most of the pc s-buds are much larger than the ones im using too so they have to be slightly larger or use fewer sensors. and also as i stated before it needs a bit of space between the buds so they do not false trip between the day and night sensors..
To piggyback on this question, how would you implement this?
I need ta write something better...
depends on how you direct power from either the nor latch, so that it will either be powered when it is day or night or even both.
that's a loaded question, there are so many things you can do. you could have it turn lights on when its night. lock a door so people cant enter either at night or day. and lots of other things. and millions of more things i cant imagine.
Also, looking forward to the tutorial video. ETA on that?
to answer your question it definitely has to be where light can hit it. the more open the upper level is the more accurate it will be. you could conceivably place it under ground with a window that is directly above the device. since sunlight doesn't decay unless obstructed by water, glass, half slab. or leaf blocks,or forced to light an offset area. this however would pose a serious problem. light would only hit the sensor when the sun was directly above it this means the time for it to detect sunlight would be very short and likely not long enough to trigger the mechanism.
I original found this out last year, but in the latest version of MCXBLA they will get stuck on an on state (rare but happens)
Original post.
To reduce the chance of hanging place two pieces of redstone dust on the back block leading out & the top redstone dust & torch isn't needed, unless you want to invert the output.
I used one in this build, but due to the locking on state, I had to go with a duel edge detector.
no you can use bud's like trip wires by using red stone ore as the update block since the block lighting up is an update. and it will light up if anyone walks on it.
Ive completely redone the mechanism and it uses piston buds now. ill post some pics and try to make it a proper tutorial. and show how it can be used for farms. "trip wires". and other things. but like much of minecraft there are a near infinite number of possibilities.