Arduino Door Lock Servo

A pin based lock using keypad and servo.

Arduino door lock servo.

Just thought of making a password based door lock system in which you can enter the password via the keypad. To connect the servo motor with the arduino use digital pin d9 of arduino to output the pwm pin of the servo motor. In this project i mede an door lock or box lock that opens when you enter your password and press. The power wire is typically red and should be connected to the 5v pin on the arduino board.

This is a simple arduino project. A latch can be attached to the servo e g. In this video you can learn how to make a simple password based door lock system using arduino servo motor and 3 4 matrix. Upon scanning the right tag and entering right pass it will open door and send confirmation message otherwise it will send alert message.

Now we will connect the 16 2 lcd to the arduino. Connect all seven pins of the keypad to analog pins d1 d7 of arduino. In this project we will do an automatic door lock system using a 4 4 keypad and servo motor controlled by arduino. Arduino breadboard keypad 4 4 in this example cables one red led one green led two 100 ohm resistors servo only if we enter the right code on the keypad we want the green led to light up and turn the servo to a certain position lock open.

Now connect the positive wire of buzzer to the pin d10 of arduino and negative wire to the ground. The servo arm will be connected to the slider lock and will move to 0 degrees to lock the door and 60 degrees to unlock it using commands it gets from out bluetooth device. Arduino door lock with password. Servo motors have three wires.

To unlock and lock a door. The servo turns back to the position it was in after some seconds.