I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

[Will] has been hard at work on a replacement system for his Hackerspace’s RFID door lock. The original is now several years old and he’s decided to upgrade to a much more powerful processor, adding ...

In order to simplify their installation and operation, modern home security systems must be able to monitor their environments wirelessly. This includes monitoring perimeter security, intrusion ...

If a computer science student has a scheduling conflict and wants to attend two different classes that occur at the same time, what should that student do? In a session at the DEF CON 29 conference on ...