Open And Closed A Servo Door Lock

Recently i rewatched the amazing spiderman in one scene peter parker locks and unlocks his door from his desk using a remote.

Open and closed a servo door lock.

When i saw this i instantly wanted my own for my door. If key key if the lock is open it can be locked again by pushing o r on the keypad. Servo at 0 position door is closed. If you have two paper clips on you the process will be that much easier.

The command to close the lock after or is pushed. If the state changes from low to high the door opening event is detected. Bluetooth door lock arduino. After a bit of tinkering i got a working model.

If the state changes from high to low the door closing event is detected. Heres how i made it. In this project we will do an automatic door lock system using a 4 4 keypad and servo motor controlled by arduino. The required circuit is a simple pulse generator based on a 555 timer arduino or pic microcontroller.

Void loop char key keypad getkey. Arduino uno mega x1 breadboard x1 4 4 keypad x1 servo motor x1 red led x1 green led x1 220 ohm x2 jumper cable code listing is here on arduino door lock. Rfid and keypad door lock and alert system using arduino. If the state is high the door is open.

It will open door and send confirmation message otherwise it will send alert message. Bend one of the paperclips and fold out the other one as straight as possible. If the state is low the door is closed. The servo is connected to pin 11.

To detect the door opening door closing events we can detect the state change on the arduino input pin.