Intro

In this blog I will be teaching you about logic gates in minecraft. These images are provided so that you can copy what is on them even if you are bad at redstone


For this blog I will be using words like 'input' and 'output'. The input can be anything that can change the signal (ex. Lever, Button, Pressure Plate, Tripwire, etc.). The output is the signal coming out of the machine, like inputs, there can be multiple outputs.




Logic Gates




Input/Output Gate


This is not actually a real logic gate, it is the most simple thing you can create in minecraft with redstone. By turning the input (lever) on, you will emit a redstone signal. These are used in pretty much every possible redstone machine because every machine needs a power switch (input).






NOT Gate


A NOT Gate is sometimes called an inverter. It will toggle the output (Redstone) On when the Input (Lever) is off. This the opposite of the Input/Output Gate hence it's called an inverter. You can use these to switch the signal (there are many machines that will require you to do so). Or you can use it simply to inverse the on/off switch so that it works oppositely.





AND Gate


For the output to be turned on, both inputs need to be on. If on input is on while the other is off, the output will stay off. These are good for adventure maps or door opening machines because it will require you to put in a certain number of inputs, this can vary from 2- however many you want. [Note: the machine gets much bigger expanding outwards and forwards every time you add another input]





NAND Gate


For the output to be turned on, one or both inputs need to be off. In other words, if one torch or both torches are on, then the output will be on. If both are off, then the output will have nowhere to get it's power from. This is basically just a signal with many switches attached to it. It can be used as a secret failsafe, if one torch gets turned off, the other one(s) will stay on and keep the output on.





OR Gate


Any one of the inputs can be turned on to turn the output on, this works the same way as a NAND Gate but it's a bit different. This is a really simply Gate and is also used every day in redstone machines.





NOR Gate


Any one of the inputs can be turned on to turn the output off. Essentially this is an 'OR Gate' with an inverter attached to it. It's the same thing except opposite and used in every day redstone machines.





XOR Gate


Ok, now we are getting a little bit more complex. Only one of the 2 inputs can be on for the output to be on. If both outputs are off or on, then the output will be off. This is good for adventure maps, puzzles, locks and so on. It's just another way of making an 'AND Gate' just changing the rule a bit.





XNOR Gate


Only one of the 2 inputs can be on for the output to be off. If both outputs are off or on, then the output will be on. This is actually just an XOR Gate with an inverter attached to it, nothing fancy. This works the exact same way, just switches up the output so that it can be used for other purposes.





RS NOR Latch/memory cell


There are many ways to make an RS NOR Latch. In this one, the signal will switch depending on which input is on. Pressing one button will flip the current to the other output. This is something very important for making machines in minecraft. This also represents how all simple computers work.





RS NAND Latch


This one is hard to explain, it is another memory cell but works a bit differently. Turning one input on will turn one output off, and it will stay if the other input is turned on. If both inputs are off, then both outputs will be off. If both inputs are on, then whichever input was turned on first will determine which output will be on and which output will be off.





Pulser/Clock


This makes a constant loop, it will continue until stopped. The speed at which the loop travels can be adjusted with repeaters or making the clock larger. This is used for say a light that you want to turn on and off constantly, you can change





Rapid Pulser


This is the fastest a clock can loop. It is the fastest because the signal is not actually looping, it is switching between redstone torches very fast.



Thats It!

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