Rather than reinvent the wheel, you might want to check out the extremely impressive ESP-RFID project ... to create a very professional access control system without breaking the bank.

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 ...

World Cup enthusiasts were able to access this year’s FIFA World ... This allowed them to better manage traffic flow. Rather than requiring visitors to queue up to exit the stadium, HID deployed a UHF ...

Mar 25, 2008A Chicago-area high school has begun issuing RFID-enabled identity cards. According to staff members, this has provided the school with an efficient tool for controlling and improving the ...