Rajat Naruka
Published

Traffic light system

in this project, there will be traffic lights which will be controlled with delay and 3 LEDs.

IntermediateProtip284
Traffic light system

Things used in this project

Schematics

9LTKTtM4jOeNBuyLI74E.JPG

7SNRyQovkzALrkq8ULF8.JPG

Code

traffic lights

Java
int red = 13;
int yellow = 12;
int green = 11;

void setup(){
pinMode(red,OUTPUT);
pinMode(yellow,OUTPUT);
pinMode(green,OUTPUT);
}

void loop(){
changeLights();
delay(15000);
}

void changeLights(){
// green off, yellow for 3 seconds
digitalWrite(green,HIGH);
digitalWrite(yellow,LOW);
delay(3000);

// turn off yellow, then turn red on for 5 seconds
digitalWrite(yellow,LOW);
digitalWrite(red,HIGH);
delay(5000);

// red and yellow on for 2 seconds (red is already on though)
digitalWrite(yellow,HIGH);
delay(2000);

// turn off red and yellow, then turn on green
digitalWrite(yellow,LOW);
digitalWrite(red,LOW);
digitalWrite(green,HIGH);
}

Credits

Rajat Naruka

Rajat Naruka

8 projects • 1 follower

Comments