How to Create Redstone Combinations Locks in Minecraft

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During last Saturday's Weekly Workshop, we played with redstone combination locks. A redstone combination lock is a redstone device that relies on logic gates in order to power a door or some other redstone powered item. The complexity of a lock can often be determined by how many logic gates are used in conjunction with each other. We used redstone logic gates in a previous tutorial as well. Combination locks can be used to keep your loot safe on a chaos server, create fun mini-games, or test would-be griefers before they dare enter your server without reading the rules. As with all things redstone, combination locks can be extrapolated for many, many uses.

Creating a Redstone Combination Lock

In this example, we'll use an intermediate lock that can be changed either for more simplicity or greater complexity.

Step 1 Build Your Combination Array

Typically, the combination of a redstone lock is entered using levers. The lock is usually opened either by a pressure plate or stone button after completing the correct combination. We'll use levers and pressure plates in this example.

How to Create Redstone Combinations Locks in Minecraft — (1) Place three redstone levers on any block material you choose. Determine the combination you want to use for later. , (2) On either side of your combination array, place redstone torches like so. As you flip the levers on either side the redstone torches will deactivate. The torches will need to be deactivated in order to open your door, so adjust for your combination accordingly. , (3) Run redstone wire from the center and side levers to a single block of your choosing. Place a restone torch on the far side of the block and conect the wires to the unoccupied sides as seen above. (4) Here is the current array from behind. When the levers have the proper combination this redstone torch lights up, when they don't it turns off. This is the first part of our lock.

Step 2 Build an And Logic Gate

All redstone gates transmit a signal based on a certain set of requirements. A redstone And logic gate is named as such, because it requires two redstone signals to be sent to it simultaneously in order to send a final signal. This means that our combination above will have to be right in order to help activate one half of the And Gate.

Step 3 Connect the And Gate and Combination Array

Step 4 Add a Second Redstone Activator

The And Gate still needs a second redstone signal in order to be activated. This will be the final step needed to open your door or other redstone activated devices. This can be a button, a pressure plate, or a lever.

Step 5 Complete the Lock

Now you can breath easy keeping unwanted beings out and your favored items in. A special thanks to everyone who made this workshop an awesome one!

Questions or comments? Please feel free to leave them in the comments section below.

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