Secret Knock Detecting Door Lock | Arduino Project

Unlock the door with a secret knock. In this project, I used an Arduino Uno, a piezo speaker, and a servo motor.
If a piezo speaker hears the right number of knocks in the right cadence it triggers the servo motor to turn lock/unlock the door.

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[kelleyg]

I half expected this to be Michael Reeves. Great video.

[billyb]

thats a most interesting idea
*left a like and fully viewed👍Au👍*

[daimndarrellz]

Mantapp..bikin yg pke suara "hapuukk" trs ngunci sendiri dong gan.. 👍👍

[nickgennady]

Imagine trying to unlock this door in a scream movie lol

[franklinschmidt]

Cool how can I change the pattern of the lock

Edit: I see where but not how so could you explain how can I make it do that generic nock rhythm the one that goes du. Dudududu... du du. Also one knock wait 1/8 a second then 4 knocks rapid fire then wait 2/4 a second and nock once then wait 1/4 a second then one more knock probably not correct timing but just to show what that knock is

[andriblksn]

Mau tanya bang maksud dari angka di inisial setup di variabel itu apa bang? Bisa dapet 100, 100, 50, 50 dan seterusnya itu bang dapetnya dari mana ? Dan fungsinya apa bang tolong pencwrahannya

[mohamedmumthaj]

I need help to do a project of smart door lock usin RFID and secret knock sound.

Is onyone able to help me with this.

[rishwanthboinapelly]

Can we have circuit diagram of this one

[januarmuhamadhilpani]

why the github link said that not found error 404

[sooryaganesh]

Please anyone help me in coding and circuit diagram

[eldascgomaii]

Hello, could you pass me your code please?