"Knock, Knock!" Arduino Escape Room Puzzle

[@wolfgangscholl7233]

Great video and awesome explanation! The way of explaining with your visual match perfectly. Best wishes!

[@jeremyflusin1232]

You are so bloody inspiring !

[@Anonymous-vh6kp]

Why is the resistor (next to the zenor) between line and ground? Shouldn't it be just on the positive? I don't understand.

[@supercables251]

Such beautiful code! AWESOME!

[@maxistarling]

Could you share it to me?

[@yossifayman3331]

Me too

[@eladsinay6914]

Sorry, i know everyone is asking you this but if you do have the code, can you please share it with me as well, im trying a big ambitious project with this. Promise to show it off once its done but the code is very necessary for it

[@ThePamelitaD]

Thank youuu :'v i learnd so much here... you inspired me to learn :3

[@dariustristen6263]

Pro trick: watch series at flixzone. Been using it for watching loads of movies recently.

[@kameronkayson7120]

@Darius Tristen yup, I have been watching on flixzone for since december myself :)

[@dlepierres]

Really great

[@servicetech1661]

hello, I need your help to make a design to replay a knocking on door and add extra knock or random knock,to prank my friend on Halloween, do you mind to let me know what I need , Im very new to this THANKS IN ADVANCE

[@coasterollie]

Going to ask a noob question now (completely new to electronics). I assume I need a 12v (UK) plug to power the 12v maglock. But how many amps does it need to be as there's lots of different options when trying to purchase one. Also I have this all set up (minus the plug for the maglock) and it detects the incorrect knocks. But when I do the correct knock to "shave and a haircut" it still beeps like it's incorrect. Is there something I may have missed or done wrong?

[@PlayfulTechnology]

Hi! Not a daft question at all. So, UK mains power is 240V AC. This style of maglock wants 12V DC. So you need an 240VAC-12VDC power convertor. Those might look like the sort of black adaptors you might plug into your laptop, or they might be a bit more industrial looking. Maglocks typically draw somewhere between 500mA-1A current, so that would require *at least* a 12W power adaptor (1A@12V = 12W). Note that it doesn't do any harm to use a 12V adaptor that has a higher rating (e.g. a 2A@12V = 24W) - devices only draw as much current as they need. So this one will work fine, for example: www.ebay.co.uk/itm/AC-DC-12V-2A-POWER-SUPPLY-ADAPTER-CHARGER-FOR-CAMERA-LED-STRIP-LIGHT-CCTV/253871141500

[@PlayfulTechnology]

Or here's the slightly more "industrial" style I was describing which simply has screw terminal connections which makes it a bit easier to wire direct to the terminals of your maglock: www.ebay.co.uk/itm/DC12V-Top-Quality-LED-Driver-Power-Supply-Transformer-LED-Strip-Light-MR16-CCTV/162283920873

[@coasterollie]

@@PlayfulTechnology Thank you for the help and the links. :)

[@trexnfabianndenis]

What relay is it you're using and where can i order it? Does this have an inbuild transistor and diode? How come this isn't included in the circuit? Im very new to this so..

[@manudidier1207]

not able to find the code

[@ScoobyDios]

Very clever code

[@jonnyzinn3782]

Would a arduino nano work for this project?

[@dragoplayz25]

@Playful Technology Can i use latch lock instead of maglock .plese reply as i want to make this lock for my science exhibition

[@Viratworld123]

U can use any lock Depend on your relay capacity

[@dragoplayz25]

@@Viratworld123 I was asking that can I use a servo or not instead of maglock

[@Viratworld123]

@@dragoplayz25 yes u can, U need to edit codes for servo.

[@triciadenice6907]

What are the materials used???

[@HacksterIo]

Love this!

[@peggynorton9146]

Thank you!

[@harshitsrivastava5559]

Sir can I use 19.4v 3.3amps laptop adaptor for power supply???

[@Viratworld123]

Power supply for ur lock is depend on type of ur lock.. For EM lock use 12V 2A power supply 19.4V may work with few em locks

[@alexk6585]

can by this code without subscribed membership?

[@PlayfulTechnology]

Sure - you can just copy it from the video.

[@crystaleath]

can you give link to download library for microphone tq

[@mmlgamer]

If I were rich and idle enough to do all this, I’d have a timing setup where the player has to knock in sync with a radio playing music like that “Knock three times at the door if you want me, twice on the pipe…” song.

[@PlayfulTechnology]

I do have some separate code that is a BPM detector rather than a knock pattern recognition. I could probably make a video of that in the future if you'd like

[@k0in0kl]

Hi, What is the PC emulator you are using?

[@DBTechYT]

From what I can tell, he's using Windows as his operating system and he's using Fritzing to lay out his ideas on the computer. It's available for Windows, Linux, and Mac. If you search for Fritzing, it should be the first search result.

[@k0in0kl]

@@DBTechYT Thank you very much. Fritzing is what i looking for😊

[@eladsinay6914]

is the code to this free or do you have to pay for it?

[@PlayfulTechnology]

You're very welcome to copy the code out from the video and use it however you wish - I show you every line as I step through it. If you support me on Patreon for $10, you're able to download the code as an .ino file together with the wiring diagram and list of where I purchased the parts etc. (for this and every other project I've done)

[@lazou01]

can i buy u as my dad pls ? THIS IS AWESOME ! Defintly will do one. Thanks mate that helps me so much ! Actually instant bought while writin this comment

[@lazou01]

i made it !!!! will send u a video on fb :D

[@servicetech1661]

Only if its possible can be wireless

[@harshitsrivastava5559]

How to use code for different knock pattern???

[@HiHello-xx5dt]

can you give the code file?

[@sander4000]

Love your vids, however it's sad you put you code behind a Patreon lock. Patreon should be optional... cant'do patreon to al youtubers

[@MarkThomas-ej2nh]

It doesn't matter since I haven't been able to get his Patreon page to work for over three weeks and I pay for it.