Passive Buzzer Sound Module for Arduino

This passive buzzer module is designed to produce various sounds, warning signals and melodies in microcontroller-based devices. Unlike active alternatives, the passive buzzer has no built-in oscillator and requires an external frequency signal (for example, via PWM or the tone function), which allows flexible control of the pitch of the sound. The board features a convenient 3-pin interface with a transistor switch for correct interfacing with the logic outputs of control boards. Features: Product type: passive buzzer / sound module (Passive Buzzer Module) Specifications: 3-pin connection (GND, I/O, VCC), built-in transistor switch, external frequency control Purpose: generation of sound signals, melodies, notes and audible alerts in hobbyist projects