When i saw this i instantly wanted my own for my door.
Open and closed a servo door lock.
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.
In this project we will do an automatic door lock system using a 4 4 keypad and servo motor controlled by arduino.
If you have two paper clips on you the process will be that much easier.
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.
Bend one of the paperclips and fold out the other one as straight as possible.
Recently i rewatched the amazing spiderman in one scene peter parker locks and unlocks his door from his desk using a remote.
Void loop char key keypad getkey.
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.
Heres how i made it.
After some wiggling your lock will hopefully open.
Rfid and keypad door lock and alert system using arduino.
If key key if the lock is open it can be locked again by pushing o r on the keypad.
Bluetooth door lock arduino.
To detect the door opening door closing events we can detect the state change on the arduino input pin.
Servo at 0 position door is closed.
If the state changes from low to high the door opening event is detected.
If the state changes from high to low the door closing event is detected.
After a bit of tinkering i got a working model.
The servo is connected to pin 11.