Serial Kickstarter and hardware developer Patrick Thomas Mitchell has this week launched his 19th Kickstarter campaign to raise the funds he requires to take his new Arduino compatible secret knock ...

Wouldn’t it be cool if you could just knock on your front door, and have it open automatically without having to fumble around with your keys? If that sounds like a dream come true, then you might ...

[Rob Hemsley] sent in an update to an RFID-based door lock. Previously, if you wanted to enter the MIT media lab, a RFID-enabled card was required to get in. Now, with [Rob]’s update, you only need to ...

Hideouts can’t be protected with a simple lock and key, those jobs require passwords or secret knocks. For the latter, you can go the extra mile and build a knock ...

[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 scrap ...