Door Lock System With Arduino

Their main advantage is contactless communication and rfid tags can work in any environmental conditions.

Door lock system with arduino.

We used analog pins since we need more that 14 digitals pins for this project. We ll discuss the arduino code and circuit design later in this tutorial. Hello you all i ve been working on a lock system for a while i started looking for some codes to use in my project but unfortunately i found a lot of complex ones and most of them have some fails especially when they use pointers you can try the. Arduino compares the read uid with the predefined uids if the uid is matched with one of the predefined uids arduino deactivates the electromagnetic lock to unlock the door.

Having them run off battery enables the system to keep running even during a black out. With the use of arduino it becomes much easy to design. Digital door lock using arduino circuit diagram. However you can change this via coding later.

The arduino code supports multiple passwords. In this project we have defined the default password 4567 in the arduino. If an incorrect finger is placed the leds angrily flash red and the oled displays incorrect. Whenever the system is at rest the rgb leds are randomly fading through 16 8 million colors.

First of all we will make the connection to the 4 4 keypad. If you are using arduino mega then there is no need to use analog pins. From outside the door a person is greeted with a fingerprint sensor and a display saying if the door is locked or unlocked. It is simple and cost efficient project and can be used as a basic access control mechanism.

This will signal the arduino to unlock the door. Similarly for unlocking we ll write low value to d0 and high value to d3. At first arduino is initialized in stand by mode where it asks the user to enter the password to unlock the door. The whole system is run with dual arduino unos and powered by portable battery packs.

When the door is unlocked by a correct password it keeps the door unlocked for 20 seconds and then automatically lock the door again. Door lock security system with arduinoc c include keypad h keypad library for keypad interfacing include liquidcrystal h library for lcd interfacing include servo h library for servo motor include string h define buzzer 20 defining pin for buzzer. If it is correct then it will show access granted welcome and then rotate servo motor to 180 doors as the door is opened. Once 5 seconds is completed the door will get locked automatically.

When we enter a password it will match it with the password stored in the arduino. Arduino door lock system with password using keypad electromagnetic lock and lcd. In this password security lock system using arduino project we have defined the default password in arduino as 1234. It will then give 5 seconds time for entering via the door.

You can change it via coding. This will signal the arduino to lock the door. It just makes the system a little more convenient. For connecting the keypad with the arduino we are using both analog and digital pins.

Program a code and upload it to arduino just like a plug and play device. Simple code for arduino keypad door lock systems for beginners.