//Fab Academy 2018
//Alzubair Alshehhi

const int buzzer = 7; //buzzer to arduino pin 7   

int k = 31;
void setup(){
 
  pinMode(buzzer, OUTPUT); // Set buzzer - pin 7 as an output

}

void loop(){
  //Loops through the frequencies from 31Hz to 1000Hz or 1KHz
 for (k=31; k<=1000; k++){
  tone(buzzer, k); // Send 1KHz sound signal...
  delay(100);        
  noTone(buzzer);// Stop sound...
  delay(100);        
 }
}