int i = 0; void setup() { pinMode(3, OUTPUT); pinMode(14, OUTPUT); pinMode(15, OUTPUT); pinMode(16, OUTPUT); digitalWrite(3, HIGH); tone(16,5000); digitalWrite(3, LOW); delay(1000); noTone(16); delay(500); } void loop() { while( i != 10) { digitalWrite(3, HIGH); digitalWrite(15, LOW); digitalWrite(14, HIGH); noTone(16); delay(30000); i++; } digitalWrite(3, LOW); digitalWrite(15, HIGH); digitalWrite(14, LOW); tone(16,5000); delay(5000); }