This kit uses a CD-ROM drive and an Arduino board to build a clever robotic lock. This dude used a bolt to create the project and it's voice activated.

[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of ...

He has fashioned an Arduino-powered door bolt that locks itself whenever you open an incognito browser window. Always nice when a computer gives you a helping hand.

Arduino enthusiasts looking for a new project to complete over the weekend might be interested in this Arduino door lock which is automatically activated as soon as you enter incognito browsing ...

Electronic and Arduino enthusiasts searching for an Arduino project to keep them busy this weekend may be interested in a new Arduino Mega fingerprint door lock. Using a little Arduino programming ...

Standard rotary padlock and keypad-based electronic safes work just fine, but he was interested to see how one might implement a single button combination lock.

Perhaps you could create an Arduino device to lean on the door right before the Arduino device bolts the door. It's not clear if the lock unlocks the door when you close that incognito browser.

There’s a hack floating around the Web right now by Cody Brocious on how to break into an Onity hotel room lock. Brocious found some very evident flaws in the locks security and did so with about $50 ...

Now, he's automated the process using a 3D printed, Arduino-powered robot he calls Combo Breaker. The mechanical hack takes advantage of a vulnerability in the combination lock that Kamkar details ...

Don't know what it is about a combination lock, but I remember being fascinated by them as a child... Hence this one caught my eye: a system that can apparently crack combination locks in under a ...