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 ...

Arduino's Versatility Shines in Real-World Projects, Enabling Endless Possibilities HONGKONG, CHINA, November 27, 2023 /EINPresswire.com/ -- Driven by modern ...

What is a door entry system? A door entry system is also known as an access control system. Entry door systems control admission to your premises for security purposes. They are put in place to ...