Sound Module

Passive Buzzer

Description: The passive buzzer module generates tones of different frequencies using PWM (Pulse Width Modulation). Unlike an active buzzer which only produces a fixed frequency, a passive buzzer allows you to play melodies and varying tones by changing the PWM frequency.

Connection:

W55MH32	Passive Buzzer
3V3	VCC
GND	GND
PA0 (PWM)	Signal

Test Code: GitHub

Demo: