int ledB =5;
int ledR = 7;
int buz=3;
void setup() {
  // put your setup code here, to run once:

pinMode(ledB, OUTPUT);
pinMode(ledR, OUTPUT);
pinMode(buz, OUTPUT);

}
void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(ledR, HIGH);
digitalWrite(ledB, LOW);
//digitalWrite(buz, HIGH);//
tone(buz,100);
delay(500);//milisecond

digitalWrite(ledB, HIGH);
digitalWrite(ledR, LOW);
noTone(buz);
//tone(buz,600);//tone(buz,1000);
//digitalWrite(buz, LOW);// #for off or no sound
delay(500);//milisecond
}