An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

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 ...

This RFID based attendance system circuit helps to take the attendance. Here, each person is issued an RFID tag. Controlling unit is in the institute. Whenever the card is placed near the reader, it ...