An unchanged credential allows anyone to virtually control door locks and elevators at dozens of apartment buildings across North America, a security researcher found.

Build your own IoT smart door lock system using a Nano ESP32 and the Arduino Cloud, courtesy of this Gadget Master.

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 ...

Arduino enthusiasts may be interested in a new gesture controlled Arduino door lock which has been created by Adham Negm and uses an Arduino Uno together with a servo motor to slide the bolt back ...

This proves that you have access to the secret, and can only be used once. To secure his Lego mini-figures, [Luca] built an authentication system using Google Authenticator and Arduino.

An RFID reader and Arduino run the system, with a button inside to unlock the door. But if power were to fail, you will still be able to get in or out manually.