My piston door blueprint. Uses 2 xor gates and one and gate for opening and locking. : r/redstone
Tutorial for key/password protected door! Enjoy : r/Minecraft
How to Make a Door That Locks in Minecraft: 12 Steps
Minecraft Tutorial - Locking Door with Key (Hidden wiring) | Minecraft tutorial, Hidden wiring, Minecraft
Tutorials/Combination locks – Minecraft Wiki
Breaking" News: How to Crack Simple Combination Locks in Minecraft « Minecraft :: WonderHowTo
Button Combination Lock - How to Password Lock Your Doors! Minecraft Map
Combination Locked Door - Blueprints for MineCraft Houses, Castles, Towers, and more | GrabCraft
Assistance Needed] A 4 button combo lock, that with different combos, will power different outputs - Redstone Discussion and Mechanisms - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum
Minecraft Combo Lock, and Door Tutorial. : 20 Steps - Instructables
How to Make the Easiest Lever Combination Lock in Minecraft! - Simple and Fast - Bedrock and Java - YouTube
How to Make a Simple Passcode Door in Minecraft : 14 Steps - Instructables