Rfid Multiple Door Lock System Using Arduino

Most arduino pre flashed atmega 168 chips come with the default blink program pre installed.

Rfid multiple door lock system using arduino.

Each rfid card has a unique id embedded in it and a rfid reader is used to read the rfid card no. My problem is that when i scan my rfid tag to unlock my door it reads it multiple times usually 4 6 which causes the strike plate to unlock multiple times. The rfid lock box combines arduino rfid and a solenoid to make your very own personal safe. Program a code and uploadit to arduino just like a plug and play device.

The goal is to open a door by using a specific tag that functions as an access badge. It doesn t use any power in a locked state. To drive the solenoid lock you would need a power source that can give 12v 500ma. This project guide will detail the steps to create an rfid radio frequency identification door lock system using an arduino mega 2560.

Connections between arduino and rfid are given in the table below. The first step to building a rfid door lock with a basic arduino is to bread board out a basic working arduino. Withthe use of arduino it becomes much easy to design. These tags contain electronic stored information.

For the most part i followed this guide from practical arduino. If the wrong tag is scanned the door will stay closed and set off a buzzer. Arduino rfid door lock circuit diagram. So we decided to test a simple and cheap prototype to see if such a robust system could be developed using the tool of our choice arduino uno.

Rfid stands for radio frequency identification. Circuit diagram for solenoid door lock using arduino is given below. The arduino based rfiddoor lock system is secure and responsive as compared to other systems. Em 18 rfid reader operates at 125 khz and it comes with an on chip antenna and it can be powered with 5v power supply.

In this project tutorial you will use the multiple mfrc522 to control a solenoid lock and three leds. The circuit diagram of arduino and rfid based door access system is shown in figure 1. The mfrc522 uses radio frequence identification rfid. The circuit basically consist of arduino uno central control unit rfid receiver module rfid tag solenoid lock and few other electronics components like resistor capacitors diodes transistors etc.

When the power is disconnected the slug moves outside and locks the door. The rfid module works as sensor. Rfid uses electromagnetic fields to identify and track tags attached to an object. The positive pin of the buzzer is connected to digital pin 4 of arduino and the gnd pin is connected to the ground pin of arduino.

In countries like india such automatic systems are not cheap by any yardstick. It provides serial output along with weigand output. When we see sophisticated door management system s the price tag struck immediately along with the utility of course.