Traffic Signal and its Rules

Published August 8, 2023 © GPL3+

How to make Traffic Lights using 7 segment Display

Traffic Lights

IntermediateFull instructions provided1 hour714

Things used in this project

Hardware components

Arduino UNO

7 Segment LED Display, InfoVue

5 mm LED: Red

5 mm LED: Yellow

5 mm LED: Green

Resistor 330 ohm

Jumper wires (generic)

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Hot glue gun (generic)

Story

Watch the video If you want to make it with real components

If you want to make a Proteus Simulation Watch this video

Traffic signals are very important in life while travelling to some place by vehicle. Traffic signals are given out by devices that are mostly placed at important locations such as busy intersections to regulate the flow of traffic, which includes everything from heavy commercial vehicles and cars to bicycles and pedestrians. However, these signals come with some rules associated with them. Basically, the traffic signal rules form the very backbone of these signs and following them is vital for ensuring smooth and risk-free road travel.

Traffic Signal and its Rules

A traffic signal is used as an instructing device that indicates the road user to act according to the displayed sign. Following the traffic signal ensures road safety and to make things simple to understand, these signals have been using a universal color code. If you don't follow the Traffic Rules, Police will challan your vehicle according to the fine they imposed on you.

Follow the Traffic Rules very carefully, as if you don't follow them, Traffic Police will impose fine on you or your vehicle can be seized.

Steps to make this Project:

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

2. Take BB 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...!!!

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Code

Arduino 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

Mohd Sohail

10 projects • 4 followers

I'm a Robotics Engineer and Freelancer

How to make Traffic Lights using 7 segment Display

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Traffic Signal and its Rules

Schematics

Circuit

Code

Arduino Code

Credits

Mohd Sohail

Comments

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How to make Traffic Lights using 7 segment Display

How to make Traffic Lights using 7 segment Display

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Traffic Signal and its Rules

Schematics

Circuit

Code

Arduino Code

Credits

Mohd Sohail

Comments

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