#define pinTbl 2
#define pinBzr 3

void setup() {
  pinMode(pinTbl, INPUT );
  pinMode (pinBzr, OUTPUT);
}

void loop() {
  int tombolDitekan = digitalRead(pinTbl); // put your main code here, to run repeatedly:
if (tombolDitekan==HIGH ) {
playTone (1000);
}
delay (200);
}

void playTone (int frekuensi) {
long jeda = 1000000 / frekuensi / 2;
for (int i=0; i<100; i++) {
  digitalWrite(pinBzr,  HIGH);
  delayMicroseconds(jeda);
  digitalWrite(pinBzr, LOW);
  delayMicroseconds(jeda);
  }
}