Sugar - Buzzer Module

Introduction

2 Active Buzzers

Function

Play sound, ticking sound

Signal:Timing Signal

How the Module Works

An active buzzer is an acoustic module that combines a vibrating diaphragm, driver circuits, and sound source components. It can produce clear, stable sound signals. Compared with passive buzzers, active buzzers feature a small size, high volume, and good sound quality. They are widely used in alarms, prompts, and reminders.

Oscillator: An active buzzer has a built-in oscillator that can generate high-frequency electrical signals. This oscillator usually consists of a transistor, a capacitor, and a resistor and can oscillate at a specific frequency.
Driver circuit: When an external input signal reaches the active buzzer, it is transmitted to the built-in driver circuit. The driver circuit controls the frequency and amplitude of the oscillator according to the input signal and converts it into an acoustic signal.
Sound output: When the oscillator starts to oscillate and the driver circuit starts to work, the active buzzer emits sound. The loudness and frequency of the sound depend on the characteristics of the input signal and the parameters of the built-in oscillator and driver circuit.