This project implements an RFID-based access control system using an Arduino board, an MFRC522 RFID reader, an I2C LCD display, an RTC (Real-Time Clock) module, and indicator LEDs with a buzzer. It ...

Hardware Arduino Nano RC522 RFID (SPI) 4×4 Keypad IR sensor (vehicle detect) Servo motor (gate) Buzzer 16×2 I2C LCD (address 0x25) LEDs (Green/Red) Pin Configuration RC522: RST D9, SS/SDA D10, MOSI ...

The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

Have you ever noticed how shopping malls, parking lots, or event venues seem to track the number of people or cars present inside? You might think they use an AI camera to count them, but in reality, ...

The most popular display system widely used in Arduino projects is the liquid crystal display (LCD). LCD displays consists primarily of two sheets of polarized glass plates with a thin layer of liquid ...