You need to enter the correct D1 combination lock code on 3F of Brookhaven Hospital in Silent Hill 2 so you can get the Filthy Bracelet required to help solve the Hand puzzle. It involves a lot of ...

Smart locks have certainly elevated the way we enter our homes. But while smart locks and other smart home devices can make your home more secure and offer some level of convenience, they're not ...

Home Key makes Level Home’s latest ‘invisible’ smart lock even more compelling for Apple users. And once it’s updated with Thread, it’ll be a strong option for everyone else too. If you buy something ...

The main principle of this circuit is that the door lock opens only when the buttons in series are pressed at a time. We can use it to lock the doors and for other security purposes. This article ...

This simple code lock circuit described here is of an electronic combination lock for daily use. It responds only to the roght sequence of four digits that are keyed in remotely. If a wrong key is ...