Rfid stands for radio frequency identification.
Rfid multiple door lock system using arduino.
These tags contain electronic stored information.
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.
Arduino rfid door lock circuit diagram.
Most arduino pre flashed atmega 168 chips come with the default blink program pre installed.
To drive the solenoid lock you would need a power source that can give 12v 500ma.
The rfid lock box combines arduino rfid and a solenoid to make your very own personal safe.
In this project tutorial you will use the multiple mfrc522 to control a solenoid lock and three leds.
Connections between arduino and rfid are given in the table below.
Each rfid card has a unique id embedded in it and a rfid reader is used to read the rfid card no.
Hii friends today i ll show you how to make rfid door lock system using arduino nano.
Connect a led to digital output 13 and verify that everything is working.
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.
The mfrc522 uses radio frequence identification rfid.
For the most part i followed this guide from practical arduino.
It provides serial output along with weigand output.
The first step to building a rfid door lock with a basic arduino is to bread board out a basic working arduino.
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.
It doesn t use any power in a locked state.
Rfid uses electromagnetic fields to identify and track tags attached to an object.
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.
When the power is disconnected the slug moves outside and locks the door.
The circuit diagram of arduino and rfid based door access system is shown in figure 1.
The goal is to open a door by using a specific tag that functions as an access badge.
The rfid module works as sensor.
In countries like india such automatic systems are not cheap by any yardstick.
I just finished installing an rfid door lock system using an rdm6300 rfid reader an arduino and an electric strike plate.
Program a code and uploadit to arduino just like a plug and play device.
This project guide will detail the steps to create an rfid radio frequency identification door lock system using an arduino mega 2560.
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.
When we see sophisticated door management system s the price tag struck immediately along with the utility of course.
