How to Use an Observer in Minecraft

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In the game name Minecraft, an observer refers to a block with the ability to radiate a redstone signal when it experiences a change in the block or fluid that it faces. This one is able to be used to build traps, flying machines, farms, bridges, and many more. How to use the observer in this game? Let’s explore it here on this page.

An observer has three important sides. The sides of an observer include:

  • Front – Front is the face of the observer that watches the block directly in front of it.
  • Top – There is an arrow on the top of the observer which shows the direction that the redstone pulse will travel.
  • Back – The back of this block sends a redstone pulse whenever there is a block or a state change.

Please take a note that in Minecraft Bedrock Edition, the observer can currently only detect block changes and not the state changes.


So, how to use an observer in Minecraft?

  1. Put the observer

First of all, you will have to place the observer. If there is no observer in your inventory, you can quickly craft one by using a crafting recipe for an observer. Apparently, the game control to put the observer depends on the Minecraft version that you use:

  • For Java Edition (PC/Mac), you need to right click on the block.
  • For Pocket Edition or PE, you need to tap on the block
  • For Xbox 360 and Xbox One, you need to press the LT button on the Xbox controller.
  • For PlayStation3 and PlayStation4, you need to press the L2 button on the PlayStation controller.
  • For Wii U, you need to press the ZL button on the gamepad.
  • For Nintendo Switch, you need to press the ZL button on the controller.
  • For Windows 10 Edition, you need to right click on the block.
  • For Education Edition, you need to right click on the block.
  1. The observer is instantly facing the block in front of it. The block changes happen when a block is either put or removed. A state change happens every time the state of a block changes.
  2. The back of the observer sends a redstone pulse if there is a transition in block or condition. For your information, the redstone signal is at level 15 so it is powerful enough to travel 15 blocks.
  3. You are able to put the redstone dust and a redstone lamp at the output, so that you are able to see the observer activate and deliver the redstone signal.
  4. If you put the cake in front of the observer, it will send out a pulse of the redstone. It is considered as a block transition by the observer.
  5. The observer can even send out the redstone pulse whenever you eat a slice of the cake. The observer sees it as a change of status since the cake block is changing as the cake gets smaller.

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