SIMPLE PROJECT FOR BEGINNER.

This project is for the beginner who starts to learn to coding by Arduino.

Sep 21, 2025

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21027 views

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12 respects

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GPL3+

Lights

Transportation

Cars

Devices & Components

10 jumper wires 150mm male

Arduino Uno Rev3

Resistor 330 ohm

Push Button

Piezo Buzzer

Breadboard 100x70

LED (generic)

Software & Tools

Arduino IDE

Project description

Code

Simple pedestrian crossing traffic light

cpp

Here is the code for this project .Have fun!

1int green=8;
2int yellow=9;
3int red=10;
4int push=1;
5int buttonstate=1;
6int buzzer=2;
7void setup() {
8  // put your setup code here, to run once:
9pinMode(green,OUTPUT);
10pinMode(yellow,OUTPUT);
11pinMode(red,OUTPUT);
12pinMode(push,INPUT);
13pinMode(buzzer,OUTPUT);
14
15}
16
17void loop() {
18  // put your main code here, to run repeatedly:
19digitalWrite(green,HIGH);
20buttonstate=digitalRead(push);
21if(buttonstate==0){
22  delay(500);
23  digitalWrite(green,LOW);
24  digitalWrite(yellow,HIGH);
25  delay(2000);
26  digitalWrite(yellow,LOW);
27  digitalWrite(red,HIGH);
28  for(int i=0;i<8;i++){
29    digitalWrite(buzzer,HIGH);
30    delay(500);
31    digitalWrite(buzzer,LOW);
32    delay(500);
33  }
34  delay(500);
35  digitalWrite(red,LOW);
36  digitalWrite(yellow,HIGH);
37  delay(2000);
38  digitalWrite(yellow,LOW);
39 
40  
41}
42}

int green=8;
int yellow=9;
int red=10;
int push=1;
int buttonstate=1;
int buzzer=2;
void setup() {
  // put your setup code here, to run once:
pinMode(green,OUTPUT);
pinMode(yellow,OUTPUT);
pinMode(red,OUTPUT);
pinMode(push,INPUT);
pinMode(buzzer,OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(green,HIGH);
buttonstate=digitalRead(push);
if(buttonstate==0){
  delay(500);
  digitalWrite(green,LOW);
  digitalWrite(yellow,HIGH);
  delay(2000);
  digitalWrite(yellow,LOW);
  digitalWrite(red,HIGH);
  for(int i=0;i<8;i++){
    digitalWrite(buzzer,HIGH);
    delay(500);
    digitalWrite(buzzer,LOW);
    delay(500);
  }
  delay(500);
  digitalWrite(red,LOW);
  digitalWrite(yellow,HIGH);
  delay(2000);
  digitalWrite(yellow,LOW);
 
  
}
}

Documentation

Diagram

Simple pedestrian crossing traffic light diagram

traffic light diagram.jpg

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jdai1986

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