Passive Speaker piezoelectric Buzzer Module with PCB and Protection - for Arduino and Raspberry pi

The following Arduino sketch will generate two different tones by rapidly turning on and off the buzzer at different frequencies using a delay.

int buzzer = 8;
// set the buzzer control digital IO pin void setup() { pinMode(buzzer, OUTPUT);
// set pin 8 as output } void loop() { for (int i = 0;
i < 100;
i++) { // make a sound digitalWrite(buzzer, HIGH);
// send high signal to buzzer delay(1);
// delay 1ms digitalWrite(buzzer, LOW);
// send low signal to buzzer delay(1);
} delay(50);
for (int j = 0;
j < 100;
j++) { //make another sound digitalWrite(buzzer, HIGH);
delay(2);
// delay 2ms digitalWrite(buzzer, LOW);
delay(2);
} delay(500);
}