byte BUZZ_PIN = 2;     
void setup() {   pinMode(2, OUTPUT);   }
void loop() {   // Fire alarm beep pattern
for(byte i=0; i<2; i++) // Из wowki bomb
  { tone(BUZZ_PIN,880);  delay(40); //a5
    tone(BUZZ_PIN,988);  delay(40); //b5
    tone(BUZZ_PIN,523);  delay(40); //c5
    tone(BUZZ_PIN,988);  delay(40);
    tone(BUZZ_PIN,523);  delay(40);
    tone(BUZZ_PIN,587);  delay(40); //d5
    tone(BUZZ_PIN,523);  delay(40);
    tone(BUZZ_PIN,587);  delay(40);
    tone(BUZZ_PIN,659);  delay(40); //e5
    tone(BUZZ_PIN,587);  delay(40);
    tone(BUZZ_PIN,659);  delay(40);
    tone(BUZZ_PIN,659);  delay(40);      }
}
/* code generates random tones for DURATION between +300 and -300 of f specified                                                            
int freq, duration;
int low =  freq - 300;
int high = freq + 300;
unsigned long time = millis();
while(millis() - time <= duration)  {
tone(2, random(low, high));         }  //delay(100);
noTone(2);            }  */
//----------------------------------------------------------------------
/*void loop() {   // Fire alarm beep pattern
  for (int i = 0; i < 3; i++) {  // Repeat the beep three times
    tone(LED_BUILTIN, 3000, 200);  // High-pitched beep at 3000 Hz for 200 milliseconds
    delay(200);  }// Short delay between beeps 
  delay(1000);  // Longer delay before repeating the pattern
}  */