This project demonstrates how to build an RFID-based access control system using Arduino. The system integrates an RFID reader, servo motor, 16x2 LCD (I2C), three LEDs (Red, Yellow, Green), and a ...

Components Used Arduino Uno (or compatible board) RFID Reader LCD Display (LiquidCrystal_I2C) GSM Module (SIM900) SoftwareSerial Library (for GSM communication) EEPROM Library (for storing data) ...

DISPLAY LCD 4 x 20 command TWI (I²C compatible)INTRODUCTION: DISPLAY LCD 4 x 20 command TWI (I²C compatible) INTRODUCTION: We all know how the free pins microcontrollers are precious. The use of an ...

This paper presents the design and implementation of an RFID-GSM based intelligent cart system to automate the retail checkout process and reduce long queues and manual billing inefficiencies. The ...

In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present challenges such ...