Servo at 0 position door is closed.
Open and closed a servo door lock.
In this project we will do an automatic door lock system using a 4 4 keypad and servo motor controlled by arduino.
To detect the door opening door closing events we can detect the state change on the arduino input pin.
If you have two paper clips on you the process will be that much easier.
After a bit of tinkering i got a working model.
When i saw this i instantly wanted my own for my door.
This operation can be used to actuate a door lock or a latch to enable you to remotely lock and unlock a door or gate.
Bluetooth door lock arduino.
Rfid and keypad door lock and alert system using arduino.
The command to close the lock after or is pushed.
It will open door and send confirmation message otherwise it will send alert message.
If the state is high the door is open.
Void loop char key keypad getkey.
Recently i rewatched the amazing spiderman in one scene peter parker locks and unlocks his door from his desk using a remote.
When you insert the bent paperclip stick the straightened paperclip beneath it and move it around.
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.
Heres how i made it.
If the state is low the door is closed.
If key key if the lock is open it can be locked again by pushing o r on the keypad.
The required circuit is a simple pulse generator based on a 555 timer arduino or pic microcontroller.
If the state changes from low to high the door opening event is detected.
After some wiggling your lock will hopefully open.