The use of Radio Frequency IDentification (RFID) technologies is growing. Many different applications are implemented in various sectors, and used for very different purposes. RFID enables wireless ...

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 project turns an Arduino Nano into a fully functional RFID reader/writer device that behaves like a real commercial RFID hardware unit. Instead of acting like a simple Arduino sketch, the ...

#include <MFRC522.h> // Sử dụng thư viện MFRC522 để đọc thẻ RFID #include <LiquidCrystal_I2C.h> // Sử dụng thư viện LiquidCrystal_I2C để điều khiển màn hình LCD qua giao tiếp I2C LiquidCrystal_I2C lcd ...

March 31, 2012 Add as a preferred source on Google Add as a preferred source on Google If your home or office has unique security challenges or you just want the geek cred you assemble a system to ...