/*
Código criado by Gamesh_
13/01/2011
http://brasilrobotics.blogspot.com/
*/
int piezoPin = 9;
void setup() {
pinMode(piezoPin, OUTPUT);
}
void loop() {
digitalWrite(piezoPin, HIGH);
delayMicroseconds(600);
digitalWrite(piezoPin, LOW);
delayMicroseconds(600);
}