Electronic Roulette Wheel

[gunaka]

I would like to build electronic roulette wheel with 20 LED.
On internet i only found schematics that has 10 LED, so i need ur help.
In links below there is explenation how should roulette work but I need to add 10 more LEDs.
I think i need to add 2 more IC 4017 but i dont know how.
Can u explain me how i need to add this.

https://www.electroniq.net/other-projects/electronic-roulette-wheel-using-555-timer.html
**broken link removed**

Thx infront

 

[MrDEB]

this should help
**broken link removed**
just search "cascading 4017 circuits"

 

[mbarazeen]

see the attachment...

 

[gunaka]

sry 4 double

 

[gunaka]

@MrDEB
Ill try to search more but there is hard to find shematic with 20 led

@mbarazeen
I think i can use ur shematic (few parts) coz i only need 20 LED (20 outputs).
Ill try to simulate it in multisim

 

[mbarazeen]

I think i can use ur shematic (few parts) coz i only need 20 LED (20 outputs).
Ill try to simulate it in multisim

you don't need to simulate, its a working design, of cause you can limit with only three 4017s to drive 20 LEDs.

 

[MrDEB]

Just add another 4017 and you have capabilities of 27 LEDs

 

[MrDEB]

A roulette wheel has 36 pockets or LEDs in your wheel.
https://en.wikipedia.org/wiki/Roulette#Roulette_wheel_number_sequence

 

[koolguy]

just search "cascading 4017 circuits"

Explanation in page 8 of data sheet.

 

[gunaka]

A roulette wheel has 36 pockets or LEDs in your wheel.
https://en.wikipedia.org/wiki/Roulette#Roulette_wheel_number_sequence

I am building mini version

 

[users]

I think i need to add 2 more IC 4017 but i dont know how.
Can u explain me how i need to add this.

https://www.electroniq.net/other-projects/electronic-roulette-wheel-using-555-timer.html
**broken link removed**

You can add a D-trigger to the circuit:

https://zpostbox.ru/wheel.html

 

[sheldonstv]

heres a way of cascading 4017s......

 

[MrDEB]

USERS "great idea of adding a D flip flop"


SHELDONSTV "what a waste of good silicon. Your circuit is too convoluted at best". Nice try though.

The BEST approach would be a micro controller. Could be built to fit into the palm of ones hand. One chip, 20 LEDs couple resistors.

 

[gunaka]

thx guys u helped me alot
i solved my problem

 

[chemelec]

Why not make a GOOD Roulette Wheel.
**broken link removed**

 

[MrDEB]

The 4017 schematic that USERS posted IMO is better. No wasted silicon in the circuit BUT using a PIC is still the BEST idea.