CD4017 code lock with wrong code detection

Hi Jens! I discovered your channel a little while back and I was inspired enough to build your binary clock. Now I'm making some simple changes to turn it into a Nixie tube clock! I'm very excited about this and I'll be making a video to document this project too.

I enjoyed this video and perhaps I'll find more applications for discrete logic in place of microcontrollers in the future as well.

Love your presentation!

👍🏼

I can see this being used as a movie prop. You could make a little door code cracker box to go along with it.

Fantastic videos. Thanks for the content.

What is another solution for the capacitors across the power terminals on the ICs. The leads on the 0.1 uF caps are too short. Do I just need to extend my leads by soldering?

YOUR VIDEO STYLE IS WOASAM 🌻🌻

I'm a little puzzled why your videos are not 'liked' and 'viewed' as much as they deserve. They are very good. I'm hoping that it's just a problem with the Key Words you've chosen - and you're not going to change your presentation style (which is excellent). I've liked and subscribed. Thank you.

😀 belíssimo trabalho, show de 🏈🏀🥎. Parabéns pelo seu projeto e trabalho, pena que não falo inglês pra entender sua explicação.☹️ Vou me inscrever no canal. Bora, toma uma 🍺🇧🇷

Man! Again Im impressed with your quality content. keep making it, and I also need a suggestion.

Awesome thank

Jens, I like your idea of using a 555 chip to provide anti-bounce for keystrokes. It solves a problem I found with a counting circuit I was trying to build a while back. Now I do the counting with microcontrollers and such. The circuit you did could be done with a 7-seg display, couldn't it? With leading and / or trailing decimals you'd have 9 LEDs to play with.

PS: Keep up the fine work!

Hi, I congratulate you for the work you did. I think it's fantastic. Well, I would like to know if this circuit activates when you enter a 3-digit sequential password.

Correction! There are 3 types of bread boards.
1. Connected power rails
2. Non-connected
3. Connected Eluding Non-Connected.

Don’t let 3 fool you.
God Bless

Hi. can you explain to me how i can limit the number of attempts to put the code?

Can you please tell me where you got your jumper wires?:)

Nvm just had to watch more of the video 👌

Hey jens! I was wondering if we could somehow use a keypad in this project? I'm not very acquainted with electronics and it's my first time building an electronic project for my digital logic designs class so i don't really know much but wanted to like make it look more presentable maybe? Do you have any tips please?

This is a great video! I was just confused by 2 things, how do I set the initial password for this circuit? I am confused about how the circuit knows which input is the right one, also why are we using three extra buttons? Can’t I use one button to reset the circuit? Thanks!!

I have one doubt what if i make a safe with combination lock that runs on battery and unfortunately battery dies after couple of months then will my safe gets open automatically or it will stay closed forever i mean what would happen can u pls explain?

What will happen if input is ABC (we need to put B 2 times)

Hi, Great video. One Question, on which software did you make the schematic circuit

how to change the code?

What are the alternatives to CD 4081?

I have done it

This is a gem 100% haven't seen any of your videos of late

Hey so i have watched your video today but i have been working oh this project since last 4 months i had some issues that i wanted to be solved so is there any way of contacting you instead of Instagram

Simple and very well explained. Thanks for sharing!

I modified it a bit so that the combination is DEABBC, and im using only 5 buttons(A,B,C,D,E)
when i give the power supply, among all the 5 buttons, only the D button is working correctly. that is the led connected to the button is in off state initially, when the button is pressed, it turns on. but for all the other buttons, the led is already at on from the starting, and the button press doesnt affect anything. why is that? i've checked my connections too