Keypad Door Lock Arduino

In this video you can learn how to make a simple password based door lock system using arduino servo motor and 3 4 matrix.

Keypad door lock arduino.

The arduino board is connected to an lcd and a servo motor. The simply compile it then finally upload it to the atmega328 microcontroller. Password door lock security system using arduino and keypad in this tutorial you will learn how to make the most efficient password protected door lock security system using arduino and a keypad. There are red and green led light to show if the keypad is locked or unlock.

After working on the code and fixing many bugs due to simple mistakes the keypad lock works with a three digit code which is 427. First connect the 4x4 keypad to the arduino. The detail instruction code wiring diagram video tutorial line by line code explanation are provided to help you quickly get started with arduino. Green open and red closed.

Simple code for arduino keypad door lock systems for beginners. The complete circuit diagram for our arduino based digital keypad door lock project is shown below. First of all we will make the connection to the 4 4 keypad. The connections for connecting the lcd with the arduino are as follows.

After that connect the lcd to the arduino. A 16x2 lcd will be used for display. You can simply copy paste the code using arduino ide. If you are using arduino mega then there is no need to use analog.

Arduino keyless door lock system with keypad and lcd 0. The servo motor is used to push lock or pull unlock. 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. The keypad lock has become a success.

First of all we start from the brain of this project which is the arduino uno board. Then connect the last two pins on the 4x4 keypad module to digital pins 3 and 2 on the arduino. When you enter the correct 4 digit password the door is opened for 5 seconds. The code for password based door lock security system using arduino keypad is given below.

For connecting the keypad with the arduino we are using both analog and digital pins. This is a simple arduino project. Circuit diagram for arduino keypad door lock. Learn how to use keypad with arduino how to connect keypad to arduino how to code for keypad how to check keypad password how to program arduino step by step.

Digital door lock using arduino circuit diagram. We used analog pins since we need more that 14 digitals pins for this project. Connect the first six pins on the 4x4 keypad with the a0 and a5 pins on the arduino.