Easy Traffic Light circuit with Transistor BC547🚦

in this video we are going to make a very simple traffic light circuit, we used three transistors BC547 and other simple composts..

This circuit will flash three LEDs, You can change time interval with change the capacitors. More power capacitor decrease speed and less power capacitor increases the speeds. You can also connect variable resistor on the place of 100K resistor to adjust the time interval as want. In fact, as you can see in the diagram, one of the three capacitors is 100uF while the other two are 220uF. The 100uF capacitor allows yellow LED to stay on for less time than the other two LEDs..

Components List:

- Power this circuit with 9-12V DC
- Electric Diagram at: 1:45

*use 25/50/100V Electrolytic Capacitor

Chapters:
0:00 - Intro
1:08 - Test
1:45 - Circuit Diagram

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WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals.

#Electronic #Easy #Projects

[nA-vuqw]

The traffic light one way, a basic project for learn to use the transistors and capacitors. Greetings Stefano from Saltillo, México 👍

[marcelocruz]

This traffic light circuit turned out perfect! Congratulations on creativity, my friend!😊👍🇧🇷

[stdly]

Thank you very much.
I built this today and it works very well.

[BRUXXUS]

Cool! :D Could use this to make a really silly string of chasing lights with a LOT of components. hahaha.

[naimursaad]

Facing problems. When I try to simulate the circuit using multisim the leds don’t turn on. I get maximum around 1.8v across the green led which is not enough to turn on. Is there any platform where I can contact you and send screenshots

[pepegaclap]

Hey man nice video it actually worked! Are you able to tell me why you use these values for your components? I want to understand why you need the schematic to be this way for the BJT to turn on. Thanks!

[eramaycrisostomo]

A noob q, Is this a transmitter and receiver circ application?

[marcelocruz]

Do you have a project, or can you make a double traffic light for an intersection of two streets? Just a suggestion!🙂👍🇧🇷

[HelmutDoork]

If I wanted to make that into a dual traffic light with red in series with green, yellow in series with yellow and green in series with red, would cutting the resistor values by 1/2 work?

[FIXDIY]

Good, but I think the fun in connecting the elements with welding is better, my friend 💥

[porikasairam]

can u share the pdf of this video.theory