In the Arduino board, digital outputs from D2 to D8 are used to drive segments (a to g), and digital outputs D9 to D12 are used for the digits (D0-D3) of the 4×7 LED display. Note that here the ...

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.

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.

The DIY biometric lock is also equipped with three push buttons and a 16×2 LCD display. “This is a security door lock with fingerprint sensor. It is able to record all the door actions to and ...

The security flaws on this common hotel keycard lock are nothing short of face-palmingly stupid. Look closely at the picture above. This is a hotel room door swinging open. The device he holds in h… ...

Brocious found some very evident flaws in the locks security and did so with about $50 worth of easy-to-obtain materials. He used 1 Arduino Mega 128; 1 DC barrel jack, 5-mm outer diameter, 2.1-mm ...