Published February 8, 2021 © GPL3+

Traffic Lights using 7 segment display

Traffic lights with traffic counter

IntermediateFull instructions provided16,261

Things used in this project

Hardware components

Arduino UNO

5 mm LED: Red

5 mm LED: Yellow

5 mm LED: Green

Resistor 330 ohm

7 Segment LED Display, InfoVue

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

Visit my blog for more information

https://www.electronicsisfun08.in/2022/12/how-to-make-traffic-lights-using-7.html

In this video I made Traffic Lights using Arduino and & segment display.

I used one 7 segment display to count the time from 9 seconds to 0 seconds.

This is a very good and average project which can be made by school students or engineering students to show it to their school or college.

You can easily make this project.

This is very interesting, you can edit it or you can use 2 displays to make it count more.

If you like this project respect it.

Give me suggestions so I can improve it or any feedback you want to give to my YouTube channel.

link is : https://studio.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g

Also you can give me suggestions on "What I made next project.?"

Steps to make this project:

1. Gather components like Arduino Uno, 7 segment display, resistor 330 ohm, breadboard, leds red green and yellow, Jumper wires etc.

2. Take BreadBoard place red led, yellow led and green led.

3. Connect all leds anode ( +ve terminal ) with 330 ohm resistance.

4. Connect 7 segment display on breadboard.

5. Connect common pin of 7 segment display with 330 ohm resistance.

6. Do connections from Circuit Diagram.

7. Upload the code and then check its working.

Your project is ready...!!!

Visit my YouTube channel once and see more interesting projects.

"Electronics is Fun"

If you like my channel subscribe it please.

link: https://studio.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g

Code

Code

// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
// Traffic Lights //
// By MOHD SOHAIL //

int led1=2;      // Conncet a resistor of 220 ohms with GND terminal 
int led2=3;
int led3=4;
int led4=5;
int led5=6;
int led6=7;
int led7=8;
int green=11;     // connect 220 ohm resistor with LEDs 
int yellow=12;
int red=13;

void setup() {
 pinMode(led1, OUTPUT);
 pinMode(led2, OUTPUT);
 pinMode(led3, OUTPUT);
 pinMode(led4, OUTPUT);
 pinMode(led5, OUTPUT);
 pinMode(led6, OUTPUT);
 pinMode(led7, OUTPUT);
 pinMode(green, OUTPUT);
 pinMode(yellow, OUTPUT);
 pinMode(red, OUTPUT);
 

}

void loop() {
 //9 
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //8
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //7
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,0);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //6
  digitalWrite(led1,1);
 digitalWrite(led2,0);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //5
  digitalWrite(led1,1);
 digitalWrite(led2,0);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //4
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //3
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //2
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,0);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

 //1
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,0);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);
 
 //0
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,0);
 digitalWrite(green,0);
 digitalWrite(yellow,0);
 digitalWrite(red,1);
 delay(1000);

  //4
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,1);
 digitalWrite(red,0);
 delay(1000);

 //3
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,1);
 digitalWrite(red,0);
 delay(1000);

 //2
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,0);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,0);
 digitalWrite(yellow,1);
 digitalWrite(red,0);
 delay(1000);

 //1
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,0);
 digitalWrite(green,0);
 digitalWrite(yellow,1);
 digitalWrite(red,0);
 delay(1000);
 
 //0
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,0);
 digitalWrite(green,0);
 digitalWrite(yellow,1);
 digitalWrite(red,0);
 delay(1000);

 //9 
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //8
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //7
 digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,0);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //6
  digitalWrite(led1,1);
 digitalWrite(led2,0);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //5
  digitalWrite(led1,1);
 digitalWrite(led2,0);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //4
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,1);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //3
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //2
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,0);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,0);
 digitalWrite(led7,1);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 //1
  digitalWrite(led1,0);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,0);
 digitalWrite(led5,0);
 digitalWrite(led6,0);
 digitalWrite(led7,0);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);
 
 //0
  digitalWrite(led1,1);
 digitalWrite(led2,1);
 digitalWrite(led3,1);
 digitalWrite(led4,1);
 digitalWrite(led5,1);
 digitalWrite(led6,1);
 digitalWrite(led7,0);
 digitalWrite(green,1);
 digitalWrite(yellow,0);
 digitalWrite(red,0);
 delay(1000);

 
}

Credits

mohammadsohail0008

42 projects • 31 followers

Traffic Lights using 7 segment display

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit Diagram

Code

Code

Credits

mohammadsohail0008

Comments

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Traffic Lights using 7 segment display

Traffic Lights using 7 segment display

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit Diagram

Code

Code

Credits

mohammadsohail0008

Comments

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