#define SS_PIN 53 #define RST_PIN 11 #define TRIG_PIN 25 #define ECHO_PIN 23 #define pitches.h const int G1 = 2, G2 = 3, G3 = 4, Y1 = 5, Y2 = 6, Y3 = 7, R1 = 8, R2 = 9, R3 = 10; const int buzz = A2; ...

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 ...

An open-source, Arduino-based access control system designed for parking barriers using RFID technology. This project provides a solid foundation for a secure and automated vehicle entry system. It ...

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 ...

An RFID-based attendance system transforms the tedious task of manual attendance tracking into an automated, error-free process. What makes this project particularly exciting is how a few inexpensive ...

[Jason] really wanted to build an RFID controlled garage door opener and decided to turn to Arduino to get the job done. For someone who’s never worked with an Arduino before, he really seemed to know ...

A few months back, [John] was reading an article about a simple RFID security system kit, and decided he would like to build one himself. While many of the system’s details, including full schematics ...