Electronic Door Lock System Circuit Diagram

The arduino board is connected to an lcd and a servo motor.

Electronic door lock system circuit diagram.

Electronic door lock home burglary incidents are on the rise. The circuit is built around dual j k flip flop 74ls73 ic3 and ic4 regulators 7812 and 7805 ic1 and ic2 respectively 555 timer ic6 and a few other components. This capacitor can be replaced with higher value for more turn on time duration for a single trigger. The servo motor is used to push lock or pull unlock the latch on the door.

But it is easy to avoid home break ins by using a simple solution electronics projects for you. Description and working of electronic code lock circuit in the circuit electronic code lock the lock code is set through proper connection of line wires to the pads a b c and d as shown in the schematic diagram of electronic code lock. Electronic key this electronic circuit turns on a relay by pressing four keys in the correct order. If any button which is in parallel is pressed door is locked.

Relay a the lock relay and it s circuit should be inspected further for an electrical problem. The figure shows the circuit diagram of 555 based code lock as shown in the circuit we have a capacitor between pin6 and ground this capacitor value determines the turn on time of led once a trigger is passed. 1 shows the circuit of the electronic door lock. The complete circuit diagram for our arduino based digital keypad door lock project is shown below.

This is the complete circuit diagram of the password protected door lock security system designed in cadesoft eagle 9 1 0 version. Password door lock security system circuit diagram. One transistor electronic code lock system circuit principle. Circuit and working fig.

The vehicle s doors unlock ok indicating that the unlock relay is functioning. The circuit requires 12v for driving motor m1 and 5v for powering rest of the circuit. It is doubtful that both switches are faulty. First of all we start from the brain of this project which is the arduino uno board.

Homes without proper security measures in place are particularly more vulnerable. If you want to learn how to make a schematic and pcb then watch my tutorial given below. The complete phenomenon of electronic code lock system has been described briefly in the further paragraph. Inspect the door lock relay the contacts are stuck open or the coil is faulty and the relay needs.