Gsm Based Door Lock System Circuit

8 verify the password with the locking password which is mentioned in program.

Gsm based door lock system circuit. User has to send password through sms using his her mobile. Wireless home security system using arduino in this tutorial you will learn how to make door opening gsm alarm wireless home security system using arduino uno a buzzer gsm sim900a module and a reed switch. It replaces the traditional security systems which uses key to open door. The gsm module communicates with the microcontroller in a serial manner.

If the input password is exactly equal to the system password for closing the door the system will be locked and return to step. Circuit design of arduino gsm home security alarm system. This is connected to any of the digital i o pins of the arduino. Door lock system using arduino and gsm in this tutorial you will learn how to control an electronic door lock through an sms using gsm module and arduino uno or mega.

Here an at89c52 microcontroller is used and it is an 8 bit controller. As the project is based on an arduino the connection is pretty simple. Gsm based door access security system has main application in security systems and it can be used in industries shops offices and in our homes. This project has keyless entry to the door.

This controller requires a supply voltage of 5v dc. After opening the door the system will remain at waiting state for receiving a number which is designated for locking the door.