An automatic door in Minecraft is a door that opens and closes automatically when a player approaches it. This can be useful for creating secret entrances, traps, or simply for adding a touch of convenience to your builds. There are several different ways to make an automatic door in Minecraft, but the most common method is to use redstone.
Redstone is a type of ore that can be found in the Nether. It is used to create electrical circuits in Minecraft, and it can be used to power a variety of devices, including doors. To make an automatic door, you will need to create a redstone circuit that connects the door to a pressure plate. When a player steps on the pressure plate, the circuit will activate and the door will open. You can also use redstone to create a timer that will automatically open and close the door at regular intervals.