The Atomic Heart station master door code puzzle requires you to find the button code ... the combination lock module blocking the station master’s office, look to the right of the Chatty ...

With an eight-button combination ... the Atomic Heart VDNH door code head through the office door opposite the combination lock and look at the blackboard on the right wall of the office ...

The Lockly Secure Pro isn’t a new lock, but rather an upgrade to an old one: The original Lockly Secure Pro came out way back ...

and an Enter/Lock Button, which you need to click after entering the door code or to relock the door after yourself. The keypad does require you to tap it and wake it up before you enter the code ...

Putting a custom designed electronic lock on your space seems like a geek right of passage ... and makes the code that much easier to digest. To reliably lock and unlock the door, we ordered ...

If you're home and have your hands full with a project, you can even use a PIN code ... button on the bottom of the lock, it's not where people expect to look, and they may just knock on your door ...

No, there wasn’t someone waiting for me at home ready to open the door ... middle and a doorbell button on the bottom. As this was my first time installing a smart lock, I was a bit worried.

That’s what [MakerMan] did with some off-the-shelf parts and just a little bit of code ... to the lock. For this, [MakerMan] added a button and LED to the outside of the door.

Philips created a new smart lock that doesn’t require a key or a code — all you need is your ... a built-in palm scanner that unlocks your door when it detects your unique palm print.