555 Roulette Wheel

LED roulette wheel using a 555 and 4017 decade counter.

Similar projects worth following
I found this circuit on 555-timer-circuits and I had to make it!

I was looking for things to do with my stash of 555s when I found this fun little roulette wheel. I think it would make a neat interactive badge. 

Then I found this video that explains it amazingly well:

  • 1 × 5-12VDC
  • 1 × 555 timer
  • 2 × 3.3MΩ resistors
  • 1 × 10kΩ resistor
  • 1 × 330Ω resistor

View all 11 components

  • Must make PCB!

    kristina panos01/07/2021 at 21:01 0 comments

    I don't know why I walked into the woods on this one. But I took enough time off from looking at it that when I looked at it again, I discovered that all the LEDs were wired incorrectly. Now it's been another four months or so since I looked it over. Wonder what I'll find this time?

  • O Fortuna!

    kristina panos12/29/2019 at 13:42 0 comments

    Got them working in circle format. Now I that I've verified the spin order, I can redesign that PCB. 😬

  • Fritzing around with vias

    kristina panos12/28/2019 at 13:55 0 comments

    Yesterday I went from

    • drawing my PCB plan out on the whiteboard, to
    • thinking it would be nice if I knew what I was doing enough to put some components on the back, like the coin cell holder at least, to
    • figuring out how to do it in Fritzing. Crazy! I've made my via bed and now I must lie in it.

  • It moves!

    kristina panos12/28/2019 at 00:57 0 comments

    Isn't that Jell-o cube LED awesome?
    I have no idea why it takes so long to slow down and stop. It wasn't doing that earlier. The suspense may kill you.

  • Breadboarding and resistor substitution

    kristina panos12/26/2019 at 23:37 0 comments

    I've breadboarded this up and it sort of works. I think the problem may be the extremely short leads on my 1uF cap, or else the fact that I don't have any 3.3MΩ resistors and substituted with three 1MΩ resistors in series. I do have six 100kΩ to make up the .3 on each, but I worried I wouldn't have the room. Time to rewire!

View all 5 project logs

Enjoy this project?



Aurore de Chateaub wrote 10/16/2020 at 20:27 point

Plus récemment, j'étais un étudiant qui n'avait pratiquement que de grandes ambitions. Et puis un jour j'ai trouvé jouer à des jeux de casino en direct sur lequel j'ai réussi à percer le jackpot la première fois. Ce jour-là, la chance était de mon côté et depuis, elle ne m'a pas quittée.

  Are you sure? yes | no

wadonoj626 wrote 02/03/2020 at 17:56 point

Do you want to be rich and successful, but for this you are missing one step? I can definitely tell you the secret of success, but it’s better if you read it here it will just help you better understand which casinos are the largest and which casinos can be really baggy.

  Are you sure? yes | no

Mike Szczys wrote 01/06/2020 at 22:08 point

That's some sweet spinning action. The slow down is quite satisfying!

  Are you sure? yes | no

Similar Projects

Does this project spark your interest?

Become a member to follow this project and never miss any updates