Two LED blinking in pattern programming by ARDUINO




//program for TWO LED blinking one by one
//by-ALOK KUMAR PANDEY
//....................................................................................//

int led1 =13, led2 =12;
void setup()
{
  pinMode(led1, OUTPUT);         // here pin 13(i.e. led1) set as output pin
  pinMode(led2, OUTPUT);         // here pin 12(i.e. led2) set as output pin
}

void loop() 
{
  digitalWrite(led1, HIGH);      // here we set led1 as low(i.e. pin no. 13) it means led1 get on.
  digitalWrite(led2, LOW);       // here we set led2 as high(i.e. pin no. 12) it means led1 get off.
  delay(1000);
  digitalWrite(led1,LOW);        // here we set led1 as low(i.e. pin no. 13) it means led1 get off.
  digitalWrite(led2, HIGH);      // here we set led2 as high(i.e. pin no. 12) it means led1 get on.
  delay(1000);   
  
}

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