Скачать или смотреть Working Model of Traffic Light School Project

Working Model of traffic Light - School Project - Arduino Based

Take a note of LED polarity while connecting. Anode goes to Arduino Digital pins and Cathode goes to Negative through resistors

Code :
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int ledred =2; // Defining Name to Pin nos //
int ledyellow =3;
int ledgreen =4;

void setup()
{
pinMode(ledred,OUTPUT); // Defining Pin Property as Output //
pinMode(ledgreen,OUTPUT);
pinMode(ledyellow,OUTPUT);
digitalWrite(ledred,LOW); // Defining all lights to be off at start up //
digitalWrite(ledyellow,LOW);
digitalWrite(ledgreen,LOW);
delay (2000); // Starting Delay - Optional//
}

void loop()
{
digitalWrite(ledred,HIGH); // Red Light On //
delay(10000);

digitalWrite(ledgreen,HIGH); // Red Off - Green On //
digitalWrite(ledred,LOW);
delay(10000);

digitalWrite(ledgreen,HIGH); // Green Blink - Ending with Green Off //
delay (500);
digitalWrite(ledgreen,LOW);
delay (500);
digitalWrite(ledgreen,HIGH);
delay (500);
digitalWrite(ledgreen,LOW);
delay (500);
digitalWrite(ledgreen,HIGH);
delay (500);
digitalWrite(ledgreen,LOW);
delay (500);
digitalWrite(ledgreen,HIGH);
delay (500);
digitalWrite(ledgreen,LOW);

digitalWrite(ledyellow,HIGH); // Yellow On//
delay(3000);
digitalWrite(ledyellow,LOW); // Yellow Off - Loop back to Top Line - Red On//
}