Password-Based Door Lock System Using Arduino and Keypad

Say goodbye to keys!
Let's make a simple password-based door lock system using Arduino, a solenoid lock, a keypad matrix, and an LCD screen. It is a very useful project for school and college projects.
► Project Files: github.com/Enj...
● LCD Display: • Arduino Tutorial 24- C...
● Arduino Keypads: • Arduino Tutorial 34- H...
● Arduino Relays: • Arduino Tutorial 10- C...
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[@KSahithireddy-l7p]

which c compiler u used?

[@PatnaikUC]

Will it work with changed password once it is switched off and on again? If answer is no then it is not for practical use.

[@DIYTechRush]

Yeah

[@robindraycott4716]

this works great but when you loose power and rer instate power the relay clicks in and out so the door will unlock with power interuption...

[@DIYTechRush]

No, I think some relays work differently so you have to set the relay pin to HIGH under the setup function to disable it
Then if password is right you set the pin to LOW which activates the relay.

[@Xavierfun12345]

Can I use Arduino smd

[@Tibo-f8s]

Does the library really matter from wich programmer it is? I found the Liquid Crystal I2C but it wasnt from Marco Shwartz

[@DIYTechRush]

It's gonna work but you need to check the documentation of the library

[@SaadAliAhmed-t9b]

would you please give us the code

[@darwinyee9735]

It is okay that our relay is single channel (12 volts) and our supply is 12v or 9v?? For project purpose only . Thank you

[@darwinyee9735]

Or is there any code for relay to add a code from ur discription? Beacuse our project is working but the only problem is in the solinoid lock and in the relay. Thank youuu hoping for ur response

[@malikthetalentmaker6001]

عيد سعيد يا أستاذ شاكر
فيديو عظيم

[@Schjoenz]

I don't think it's a good idea to display the password for your door lock. Instead, display an asterisk..

[@DIYTechRush]

Thanks 👍

[@Umarfarooq083]

Brother, where is coding?

[@DIYTechRush]

github.com/Enjoy-Mechatronics/Password-Door-Lock

[@ZunnoorainMasroor]

@@DIYTechRush library is missing . not even in github

[@abhayvishwakarma5239]

Not working he is giving us wrong Code don't try it waste of time

[@DIYTechRush]

No the code works fine 👌