Passive Buzzers allow you to control the sound it makes. If you don't really care and just need a buzzer that comes with a pre-defined frequency output, get the active buzzer instead!
*This module is part of the KY series of sensors which means that the prints on the board might be mislabelled, do read our notes in the description to understand how to wire it properly. For more information about the problems with the KY series, click here!
Operating Voltage: 1.5V to 15V
Frequency Range: 1.5kHz to 2.5kHz
Note: Pin 1 should be connected to Ground and Pin 3 to a PWM output. Pin 2 is unused.