Authenticating and authorizing the personnel who operate, update and maintain manufacturing systems in industrial automation applications is typically accomplished using magnetic stripe cards, smart ...

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 ...

As you settle in to read this article, the Fall semester is in full swing and the college ‘rites of passage’ have commenced: students have gotten lost trying to find their classroom, they’ve capped ...