KY-012 Active Buzzer Module

The KY-012 Active Buzzer Module. The module consists of an active piezoelectric buzzer, it generates a sound of aproximately 2.5kHz when signal is high.

Connection

Connect signal (S) to pin 8 on the Arduino and Ground (-) to GND.

Code

Source code

//Example code KY012 active buzzer
int speakerPin = 8;
void setup () {
  pinMode (speakerPin, OUTPUT);
}
void loop () {
  analogWrite (speakerPin, 255);
  delay (50);
  analogWrite (speakerPin, 0);
  delay (10);
}

Links

37 in 1 box Sensor Kit For Arduino Starters brand in stock