Components Required to make Password based door lock system using Arduino this is pretty easy if you have any confusion to make the password we will give you the video in the last section of the post. When we press the key Arduino gets the character now and then the character will save into the Arduino memory and then you need to enter another three characters to enroll the password into the system.Īnd then you can make this password the current password. This is basically a user-defined password-based circuit breaker in the Arduino project where you need to make your own password now how you can enter the password.įirst, it will ask you the password to enroll then enter the 12345 into the password and now you can make your own password and the process is given here. and there may be errors occurred sometimes to get the right character which you can easily sort out.if you have some basic knowledge then you can easily observe the character into the serial monitor.and there is a character assigned with the circuit which can be shown on the serial monitor.when we press the key then the Arduino gets notified that which circuit is activated right now.the row and column make the circuit with the combination in a password-based door lock system using Arduino. if we press the A key then the circuit below the button will activate and send this information to the Arduino.īefore the keypress, all the circuit is turned off. and there are the 16 circuits when we press any key then anyone of the circuit will turn on.there is a matrix of 4×4 inside the keypad.Arduino works here as a processing device.which will send all the input data to the next device which is Arduino.How does the keypad Arduino lock works?/ Working now we will talk about the working of the system. So as this project there is also many other security lock project like fingerprint sensor based lock system also works the same when the right fingerprint place on the fingerprint it will break the circuit. circuit breaker means here when it complies with the conditions then the circuit will be break. The project password-based door lock system is also known as the password-based circuit breaker. There is no ground and VCC wire to connect to the power.īecause there are no electronic components inside the keypad there is only the combination of circuit and wires. and 8 connecting wires to connect with the Arduino. There is a total of 16 keys, 4 rows, and 4 columns.
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