void setup() {
}
void loop() {
tone(8, 440, 500);
delay(1000);
}
siren
void setup() {
}
void loop() {
for(int i=500; i<2000; i+=10) {
note(i, 50);
}
for(int i=2000; i>500; i-=10) {
note(i, 50);
}
}
void note(int pitch, int duration) {
tone(8, pitch, duration);
delay(duration*0.8);
}