/* Use buzzer to make sound
 * tutorial http://osoyoo.com/?p=251
 */
int buzzer=12;
void setup()
{
  pinMode(buzzer,OUTPUT);
}
void loop()
{
  unsigned char i,j;
  while(1)
  {
    for(i=0;i<80;i++)
    {
      digitalWrite(buzzer,HIGH);
      delay(1);
      digitalWrite(buzzer,LOW);
      delay(1);
    }
    for(i=0;i<100;i++)
    {
      digitalWrite(buzzer,HIGH);
      delay(2);
      digitalWrite(buzzer,LOW);
      delay(2);
    }
  }
}