How to make a simple led traffic light circuit

A simple led traffic light simulation circuit made from basic components.
Lone Harvest by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/...
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[@OnboardingInformation]

Very cool project, loved the traffic lights

[@HandHjoinery5546]

Thanks

[@projaxix]

Can I add more to the board like 10 total LED's or it is just limited to 3 LED's total?

[@HandHjoinery5546]

You can add more LEDs, connect them in parallel for each colour.

[@projaxix]

@@HandHjoinery5546 But for the added LED, do I have to add another capacitor and transistor? Cus my adviser uses your model as our guide but he wants a total of 10 LED and for each LED there should be one capacitor and transistor...

[@reyialexandergarcesmelenci2811]

I need 30 second green, 6 second yellow and 30 second red, can I do with the same circuit ?

[@HandHjoinery5546]

Yes you can, just change the 3 capacitors to different values to get your desired time output.

[@reyialexandergarcesmelenci2811]

Thanks u

[@reyialexandergarcesmelenci2811]

@@HandHjoinery5546 can I change resisitors value?, my problem is the value of my capacitors are really big.

[@mehmetadiguzel3641]

Is that a flip flop circuit?

[@HandHjoinery5546]

It works in a similar way.

[@HandHjoinery5546]

It works in similar way.

[@Moneybitch000]

can you please explain the ic 555 more detailed and what every pin supposed to do in easy way in explain

[@HandHjoinery5546]

This circuit is made using 3 transistors not the ic555.

[@Moneybitch000]

@@HandHjoinery5546 😥