KY-012 - Active Piezo-Buzzer module
1 3 Pinout 2 4 Code example Arduino 2 5 Code example Raspberry Pi 2 Pictures Technical data / Short description This Buzzer creates a sound with a frequency of 2,5kHz.
The active Buzzer-module doesn't need a square wave, unlike the passiv module (KY-006), to create a sound.
If it gets a minimum
