Example 1 Blinking led

[Ahmad Altonji]

// Example 01 : Blinking LED www.altonji.net

const int LED = 13;             
                                                    
void setup ( )
{
  pinMode(LED, OUTPUT);                                                       
}

void loop()
{
  digitalWrite(LED, HIGH);     
  delay(1000); 
                        
  digitalWrite(LED, LOW);   
  delay(1000);                          
}