he KY-006 Passive Piezoelectric Buzzer module can produce a range of sound tones depending on the input signal fequency. To generate single-tone sounds use the KY-012 Active Buzzer.

Compatible with popular microcontrollers like Arduino, Raspberry Pi, ESP32 and others.

This module consists of a passive buzzer and 3 male header pins. You can use it generate tones between 1.5 to 2.5kHz by switching it on and off repeatedly at different frequencies either using delays or PWM.

 CONNECTION DIAGRAM