LED Roulette Circuit Using 555 Timer, 4017 IC & Transistor - With Theory
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- Опубліковано 5 вер 2024
- A tutorial on how to make a rotating LED roulette circuit using 555 timer IC, 4017 IC & transistor on a breadboard. Working of the circuit is also explained at the end of this video.
Link to the circuit diagram plus more information:
elonics.org/le...
Components Required:
* 555 Timer IC
* CD 4017 IC
* pnp transistor (I used BC557)
* LED Lights x10
* Resistors: 330R, 10K, 2*3.3M, 10M
* Capacitors: 1uF, 100n
* Breadboard
* Lot of Breadboard Connectors
* Power Supply: (5-12)V
NOTE: If you are using a power source more than 9V, use 470R/1K resistor in place of 330R.
What this circuit does:
When you touch both the touch contacts, the LEDs rotate and come to a halt at a random number. This circuit mimics the physical roulette table found in casinos.
This circuit can also be used as an electronic dice.
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Could I replace the touch contacts with a push button? If so how?
You reversed the transistor in explanation part, I have been trying from 1 week guessing what's wrong,
HaHa, Good observation. I've noticed that after editing the video and I didn't have enough time to re-shoot.
nice. thumbs up for your project and the way you explain it.
Very nice explaination
love the creativity and explanation.
how can i connect a speaker/buzzer so it makes a sound as it does the roulette?
Hi. I want to ask some few questions about this video. I copied everything on your video. Yet, the LEDs are not acting like on your video. The LEDs are lighting by 5 unlike on your video, it was continuous. Also, as seen in the video that I send, the light are not stopping. I don't know what the problem is. I hope you could help me, thank you.
Nice project and really good work ♡
Great video again
What would keep this circuit from powering 10 12v bulbs and using a 12v power supply?
Hello, this is a wonderful project. However, I have a question. Why are 3.3MR and 100nF and 3.3MR connected in parallel between 1uF and Emitter? Is it difficult to operate without this resistance?
You are a genius sir!!!
This is an Amazing video sir
Can we use a npn BC547 transistor in place of pnp??
Hi ... its possible to modify the circuit to use less leds ?
Nice video sir.
Can i put 5v dc buzzer?
How?
Great video
very well done sir!!!
Advantage & disadvantage share kijiye plzz
Why does every video use touch contacts instead of a N.O. push button or something? Is it just a convenience thing or is there a reason for it?
Love ur explanation..
☺️
Thank you!
Sir can't understand how.. Display led. Plz help me..
How to make 1 led blinking, not led chaser?
Thank you,for the video but can you put CC in this video please because I'm not good at English and it seem like have a lot of word I didn't know. Still it really useful thank you so much!
Could you please give me the code you used? For tinkered. Thank you so much. Really enjoyed the video :)
3.3 M ohm resistor is not available so which resistor Range to use connect the circuit
The value need not be exact. You can also connect 3 x 1M resistors in series. So the total resistance will be 3M.
Great
Long live brother
I've noticed you use 270 ohms, 330 ohms, 470 ohms or 1k, etc resistors not only in this video but in all your videos. How do you find out the value of resistors and capacitors that you use?
There are formulas that you can use to calculate these values. The main one used for many applications (ie. LED current limiting) is called Ohm's Law
do you find out the value of resistors and capacitors that you use? those values are predefined. using formula u have fine the vale of resistor and capacitor.
If you mean, "How do you find out the values of *ALL* resistors and capacitors that you use?", you need to go through the explanation part. You'll then understand the underlying reasons for choosing a higher/lower valued capacitor/resistor.
If you are confused on the value resistors used in series with the LED's, the calculation is straight forward. You can use this calculator to determine the value: ledcalc.com/ Like
+nukecat said, it is determined using Ohm's law. P.S: I use LED resistor values generalised for LED's of all colours. So they are a bit more than what is generally required.
@Elonics Does bounce add some randomness?
Yes, It does. Even millisecond of extra contact can change how much the capacitor is charged, which indirectly determines when the rotation comes to a halt.
@@elonics Thank you for your reply. It is a clever little circuit which I intend to build once my CD4017's have arrived.
What to use if I don't have 3.3 m ohm resistor
You can club 2 or more resistors in series to get that value. It need not be exactly 3.3, anything between 2.7 to 3.3 is okay.
Ok thank you Bhaiya
Epic
Make led fan watch
Where can I buy this?
I can build one if you can pay for it.
@@elonics yes I want one
How can I contact you
Please use the email from this channels "about/contact" section. Can't post it here because of spam.
Bro your explanation is awesome but why you are not getting views? For others videos
even they are worst without explanation they are getting Millions of Views.
Make a video on how to Increase current in voltage booster circuit for the applications of power banks
Thanks. I'll make a video on that soon
Can you share the code, please?
Code is not required for this circuit